MC145423DT

MOTOROLA Freescale Semiconductor, Inc. Semiconductor Products Sector MC145423 ABSOLUTE MAXIMUM RATINGS (Voltage Referenced to VSS) Rating Symbol Value Unit VDD – VSS –0.5 to 6 V Voltage, Any Pin to VSS V –0.5 to VDD + 0.5 V DC Current, Any Pin (Excluding VDD, VSS) I ±10 mA TA –40 to 85 °C Tstg –85 to 150 °C DC Supply Voltage Operating Temperature Freescale Semiconductor, Inc... Storage Temperature This device contains circuitry to protect the inputs against damage due to high static voltages or electric fields; however, it is advised that normal precautions be taken to avoid applications of any voltage higher than maximum rated voltages to this highimpedance circuit. For proper operation, it is recommended that Vin and Vout be to the range VSS ≤ (Vin or Vout) Pinconstrained Selectable Master/Slave . ≤ VDD. Reliability of operation is enhanced C toModem Limited if unused Distance inputs are an appropriate Ntied I logic level (e.g., R,either VSS or VDD). Product Preview Universal Digital Loop Transceiver (UDLT-3) The MC145423 TO is a CMOS integrated circuit designed C of the major U building blocks in digital subscriber voice/da D telephone systems and remote data acquisition and contro RECOMMENDED OPERATING CONDITIONS (TA = –40° to 85°C) N O The UDLT-3 incorporates into one device, all the funct Parameter Pins Min Typ Max Unit ICthe MC145421 (ISDN UDLT-2 master), MC145425 (ISDN M DC Supply Voltage VDD SE 4.5 — (UDLT-1 5.5 slave), MC145422 master), andV MC145426 (UD E Power Dissipation (PD = VDD) VDD = 5 V VDD — — 80 mW slave). AL C Since these modes/functions are pin selectable, the MC VDD = 5 V S VDD — — 80 mW Power Dissipation (PD = VSS) E can switch E Frame Rate MSI 7.9be used in telephone 8.0 8.1 line cards, kHz as well as rem R telsets or data terminals. F CCI CLK Frequency (MSI = 8 kHz) CCI MHz • —VDD = 4.52.048 V to 5.5 V BY UDLT-1 (CCI = 256 x MSI) — UDLT-2 8.192 • —28-Pin SOIC and TSSOP8.29 Packages ED V I • Protocol Independent Frame Rate Slip* — — 0.25 % H C • Pin Controlled Power-Down Data Clock Rate (Master Mode) TDC-RDC kHz AR • 64LI Sensitivity—Control in 4100 Master Mode UDLT-1 •128 2.048 MHz Output in Slave Mode UDLT-2 — 4100 SDCLK (UDLT-2 Only) Modulation Baud Rate UDLT-1 UDLT-2 16 — UDLT-2 Features 4100 LO1, LO2 kHz kHz • —Synchronous—Full Duplex256 160 kbps Voice and Data — — in a 2B+2D 512 Format for ISDN Compa Communications * The slave’s crystal frequency divided by 512 (UDLT-1) or 1024 (UDLT-2), must equal•theProvides master’s MSI frequency ±0.25% for optimum CCITT Basic Access Data Transfer Rate (2B+ operation. ISDNs on a Single Twisted Pair Up to 1 km on 26 AW Larger Cable UDLT-1 Features • Pin Controlled Loopback • Automatic Power-Up/Down (Slave) • Full Duplex Synchronous 64 kbps Voice/Data Channel 8 kbps Signaling Data Channels Over One 26 AWG Wi to 2 km This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice. © Motorola, Inc., 2000. All rights reserved. 4 For More Information On This Product, TELECOMMUNICATIONS Go to: www.freescale.com Freescale Semiconductor, Inc. MC145423 PIN ASSIGNMENT Freescale Semiconductor, Inc... CH R A ED V I 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 VDD LO1 MASTER/SLAVE LO1 LO2 LO2 Rx RE2/BCLK RE1/CLKOUT LI SENS/2.048 MHz TDC-RDC/XTALout CCI/XTALin MSI/TONE EN1-TE1 CCI/XTALIn (TDC-RDC)/ EN2-TE2/SIE/B1B2 XTALout Tx MODULATOR VSS Vref LI LB VD SDI1 SDI2 FRAME 10/20 SDCLK/8kHz SDO1 SDO2 SE/(Mu/A) PD MOD TRI/SQ BLOCK D B1 B2 D1 D2 REGIST LOGIC C. IN , OR T OSC UC D N O IC M 28-PIN SOIC/TSSOP PACKAGES SE LE A MSI/TONE SC E E MOD TRI/SQ FR FRAME 10/20 BY CLKOUT BCLK Mu/A SE LATCH SEQUENCE AND CONTROL MASTER/ SLAVE LI SENS/ 2.048 MHz SE LATCH SE LATCH TDC/RDC VD VD CONTROL LI Vref 2 For More Information On This Product, TELECOMMUNICATIONS Go to: www.freescale.com DEMODULATOR D2 REGISTER LOGIC D1 B2 B1 TELECOMMU Freescale Semiconductor, Inc. MC145423 DIGITAL CHARACTERISTICS (VDD = 5 V ±10%, TA = – Parameter tp4 B18 Input High Level Input Low Level Input Current (Digital Pins) B17 Input Current LI Input Capacitance B14 R Tx Output HighO Current th1 CT U Tx Output D Low Current N O ICPD Output High Current — Slave Mode* EM B13 S , PD Output Low Current — Slave Mode* B12 Tx, SDO1, SDO2, and VD Three-State Current XTAL Output High Current XTAL Output Low Current B11 tsu5 HIGH IMPEDANCE LE A SC C VALID * To overdrive PD from a low level to 3.5 V, or a high level to 1.5 V requ B18 ANALOG CHARACTERISTICS (VDD = 5 V ±10%, TA = Parameter Modulation Differential Amplitude (RL = 440 Ω) B17 tp2 CH R A ED V I BY EE R F tp3 tw(L) tw(H) Freescale Semiconductor, Inc... B15 B16 Output High Current (Excluding . Tx and PD) Output Current Low (Excluding Tx and PD) IN Modulation Differential Offset B16 Vref Voltage, Typically 9/20 x (VDD – VSS) PCM Tone Level DON’T CARE Demodulator Input Impedance (LI to Vref) * The input level into the demodulator to reliably demodulate incoming tdly3 VD tp6 SDO1, SDO2 SDI1, SDI2 Rx tsu6 B11 Tx RE1 TE1 BCLK tp1 th2 B12 B13 tp5 B14 B15 Demodulator Input Amplitude* Figure 1. UDLT-1 Slave Timing Nonsynchronous 8 For More Information On This Product, TELECOMMUNICATIONS Go to: www.freescale.com TELECOMMU Freescale Semiconductor, Inc. MC145423 MASTER SWITCHING CHARACTERISTICS (VDD = 5 V ±10%, TASLAVE = –40° toSWITCHING 85°C, CL = 50 CHARACTERISTICS pF) (VDD = 5 Figure No. Parameter Input Rise Time: All Digital Inputs Min Max Parameter tr Rise Time: — 2 Input All Digital Inputs tf Fall Time: All — Digital Inputs2 Input Input Fall Time: All Digital Inputs Pulse Width: TDC, RDC, RE1, RE2, MSI, SDCLK (UDLT-2) CCI Duty Cycle Propagation Delay: MSI to SDO1, SDO2, VD (PD = VDD) TDC to Tx MSI, TE1, TE2, RE1, RE2 to TDC-RDC Setup Time Freescale Semiconductor, Inc... F Symbol TDC-RDC to MSI, TE1, TE2, RE1, RE2, Hold Time Rx to TDC-RDC Setup Time Rx to TDC-RDC Hold Time SDI1, SDI2 to MSI Setup Time SDI1, SDI2 to MSI Hold Time MSI Rising Edge to First SDCLK Falling Edge (UDLT-2 Only) EE R F LE A SC SE Unit µs µs tp Output Pulse Width: BCLK ns Clock 90 — Crystal Frequency tw2(H,L) 45 55 % Propagation Delay Times: . tPLH, ns CRising to BCLK (TONE EN1, EN2, TE1 = VDD) tPHL — IN 50 EN1, EN2, TE1 Rising to BCLK (TONE = VSS) , — 50 BCLK to EN1, EN2, TE1 Falling OR T tsu3 20 ns (UDLT-1) RE1—Rising to BCLK C U RE150 Falling to BCLK DD) (UDLT-1) th5 D —(TONE = Vns RE1 Falling to BCLK (TONE = VSS) (UDLT-1) N tO 30 — ns BCLK to Tx ICsu5 TE1,TE2 tons SDO1, SDO2 30 — M th1 Rx to BCLK Setup tsu2 30 Time th2to BCLK Hold30 Rx Time — ns — ns tSDI1, P1LH SDI2 to TE—Setup Time 50 ns V TE1,TE2 Falling Edge to Tx High IImpedance SDI1, SDI2 to TE Hold Time tsu6 — 50 ns EN1, EN2 Rising Edge to DCLK Rising Edge (UDLT-2) tsu7 — 50 ns EN1, EN2 Rising Edge to First Tx Data Bit Valid tdly — 70 ns BCLK Rising Edge to Tx Data Bits 2 – 8 Valid tsu8 — 135 ns DCLK Pulse Width High (UDLT-2) SDI1, SDI2 Data Setup (Data Valid Before SDCLK Falling Edge) (UDLT-2 Only) tsu9 Pulse Width 50 Low (UDLT-2) — DCLK TE Rising Edge to First Tx Data Bit Valid BY TDC-RDC Rising Edge to Tx Data Bits D 2 – 8 Valid H E SDCLK Rising Edge to SDO1, RCSDO2 Bit Valid A (UDLT-2 Only) SDI1, SDI2 Data Hold (Data Valid After SDCLK Falling Edge) (UDLT-2 Only) PD, LB Setup (PD, LB Valid Before MSI Rising Edge) PD, LB Hold (PD, LB Valid After MSI Rising Edge) ns DCLK Rising Edge to SDO1, SDO2 (UDLT-2) th3 20 — ns SDI1, SDI2 Setup (SDI1, SDI2 Valid Before DCLK Falling Edge) (UDLT-2) tsu10 50 — ns SDI1, SDI2 Hold (SDI1, SDI2 Valid After DCLK th4 20 — ns Falling Edge) (UDLT-2) EN1, TE1 Rising Edge to VD Valid SE PIN TIMING F Parameter LB, PD Hold (LB, PD Valid After SE Falling Edge) SDO1, SDO2, VD High Impedance After SE Falling Edge SDO1, SDO2, VD Valid After SE Rising Edge LB, PD Setup (LB, PD Valid Before SE Rising Edge) 6 For More Information On This Product, TELECOMMUNICATIONS Go to: www.freescale.com TELECOMMU 12 Figure 5. UDLT-2 Master Timing For More Information On This Product, TELECOMMUNICATIONS Go to: www.freescale.com Tx RE1 TE1 PD/LB BCLK VALID B1 B11 tp1 tsu10 th4 B12 tPLH/tPHL DON’T CARE B13 tp5 tsu9 B14 B1 B15 B1 th3 B16 B17 tp2 B11 tp B14 B18 DON’T CARE tsu8 B17 tw(L) B14 B18 B15 tw2 HIGH IMPEDANCE tp3 VALID B13 B16 DON’T CARE B12 th1 B15 tsu7 B16 tdly tw2 tw(H) B2 B17 B18 B2 R, O CT U ND tw2 C IN VD SDI1, SDI2 tPLH dly3 /tPHL tsu5 B13 th5 tw2 S O IC EM SDO1, SDO2 B12 tsu3 LE A SC SDCLK tP1LH B11 tsu6 th5 BY EE R F Rx th5 ED V I RE1/ RE2 Tx th5 CH R A TE1/TE2 TDC/RDC MSI tp Freescale Semiconductor, Inc... tp4 DON’T CARE MC145423 Freescale Semiconductor, Inc. . Figure 2. UDLT-1 Slave TELECOMMU 10 Figure 3. UDLT-2 Slave Timing For More Information On This Product, TELECOMMUNICATIONS Go to: www.freescale.com th5 B11 tPLH/tPHL tsu3 B12 th5 th3 B13 B14 B17 tp tsu3 B15 B18 B18 VALID B16 tdly2 B21 B21 B22 B23 B17 B22 tw(H) B23 B24 B24 B18 tw2 B25 B25 tw2 B2 B2 B26 B26 tw(L) B11 B28 B27 th5 B11 B28 B1 B27 HIGH IMPEDANCE . RE1 Tx TE1 tsu3 tp B1 B16 B17 C IN CCI, TDC/ RDC tdly3 B1 B15 B16 R, O CT U ND VD MSI SDI1, SDI2 tsu9 B14 B15 tw(L) O IC EM SDO1, SDO2 th1 B13 B14 tsu7 S SDCLK B12 tsu5 B13 tdly1 tp1 EE R F LE A SC tPHL B11 Rx B12 tp2 BY B11 tp5 ED V I Tx EN2 tp1 CH R A EN1 BCLK tw(H) Freescale Semiconductor, Inc... MC145423 Freescale Semiconductor, Inc. Figure 4. UDLT-1 TELECOMMU Freescale Semiconductor, Inc. MC145423 MC145423 UDLT-3 PIN STATES FOR UDLT-1 SLAVE MODE (continued) Freescale Semiconductor, Inc... MC145423 Pin No. Pin Name 23 UDLT-1 Slave Mode Powered-Down UDLT-1 Slave Mode Powered-Up SE TONE = 0, Off TONE = 1, On No Valid Burst Rec’d Valid Burst Rec’d No Valid Burst Rec’d Valid Burst Rec’d BCLK = 128 kHz BCLK = 128 kHz BCLK = 128 kHz In/out Normal LB Low RE2/ BCLK Output BCLK = 128 kHz BCLK = 0 BCLK = 128 kHz 24 Rx Input 64 kbps Data In Don’t Care Don’t Care Don’t Care SDO1, Don’t Care SDO2, VD . Don’t Care 25 LO2 Output Modulator Out Modulator Out LO2 = LO1 ,LO2 = LO1 LO2 = LO1 26 LO1 Output Modulator Out Modulator Out LO1 = LO2 OR T LO1U =C LO2 LO1 = LO2 D N 27 MASTER/ SLAVE Input 1 1 1 28 VDD Power +V +V LE A SC LO2 = LO1 O IC EM S+V LB, PD IN C th PREVIO INTERNAL tdly1 Figure LO1 = LO2 1 1 1 +V +V +V 6. SE MC145423 UDLT-3 PIN STATES FOR UDLT-1 EE MASTER MODE MC145423 BY FRUDLT-1 Master Mode ED V In/out Normal HI C Power Supply R APower Gnd Pin No. Pin Name 1 VSS 2 Vref Analog Ref 3 LI 4 UDLT-1 Master Mode Powered-Down Powered-Up LB Low SE Low Normal SE Low Power Supply Gnd Power Supply Gnd Power Supply Gnd Power Supply Gnd AGND VDD/2 AGND VDD/2 AGND VDD/2 AGND VDD/2 AGND VDD/2 Input Analog In Don’t Care Analog In Analog In Analog In LB Input 1 0 State Latched Don’t Care Don’t Care 5 VD Output Digital out Digital out High Impedance Digital out High Impedance 6 SDI1 Input 8 kbps Data In 8 kbps Data In State Latched 8 kbps Data In State Latched 7 SDI2 Input 8 kbps Data In 8 kbps Data In State Latched 8 kbps Data In State Latched 8 FRAME 10/20 Input 0 0 0 0 0 9 SDCLK 10 SDO1 Output 8 kbps Data Out 8 kbps Data Out High Impedance 8 kbps Data Out High Impedance 11 SDO2 Output 8 kbps Data Out 8 kbps Data Out High Impedance 8 kbps Data Out High Impedance 12 SE/(Mu/A) Input 1 1 0 1 0 13 PD Input 1 1 State Latched 0 State Latched 14 MOD TRI/SQ Input 0 0 0 0 0 15 Tx Output 64 kbps Data Out 64 kbps Data Out 64 kbps Data Out 64 kbps Data Out 64 kbps Data Out 16 EN2-TE2/ SIE/B1B2 Input SIE Digital In SIE Digital In SIE Digital In SIE Digital In SIE Digital In 16 Don’t Care High Impedance High Impedance High Impedance High Impedance High Impedance For More Information On This Product, TELECOMMUNICATIONS Go to: www.freescale.com TELECOMMU Freescale Semiconductor, Inc. MC145423 SOIC PACKAGE PINOUT COMPARISON MC145423 UDLT-3 PIN STATES FOR UDLT-1 SLAV UDLT-3 PINOUT VERSUS MC145421DW/22DW/25DW/26DW (UDLT-1/UDLT-2 MASTER/SLAVE) PINOUT Freescale Semiconductor, Inc... UDLT-3 MC145423 UDLT-1 Master MC145422 UDLT-1 Slave MC145426 Pin No. Pin Name Pin No. Pin Name Pin No. Pin Name 1 VSS 1 VSS 1 VSS 2 Vref 2 Vref 2 Vref 3 LI 3 LI 3 LI 4 LB 5 LB 5 LB 5 VD 6 VD 6 VD 6 SDI1 7 SI1 7 SI1 7 SDI2 9 SI2 9 8 FRAME 10/20 Logic 0 9 SDCLK/8kHz High Impedance 10 SDO1 8 SO1 11 SDO2 10 SO2 12 SE/(Mu/A) 11 13 PD 14 MOD TRI/SQ 15 Tx 16 BY EDSE V I PD CH Logic 0 R A 12 R, Input3 O 44 Input4 CLBTLB U 55ND VD VD 5 Output O D1I SDI1 Input6 IC 66 M 7 D2I 7 E 33 S SI2 Logic LE0 A SCSDCLK UDLT-1 Slave Mode MC145423 Powered-Up UDLT-2 Master UDLT-2 Slave Pin Pin MC145421 MC145425 No. Name In/out Normal LB Low Pin Pin Pin Pin 1 VSS Power Power Supply Power Supply No. Name No. Name Gnd Gnd 1 VSS 1 VSS 2 Vref Analog. AGND AGND C 2 Vref Vref Ref 2 VDD /2 VDD/2 N I 7 SO2 109 10 Output D2O SDCLK/8kHz 11 Mu/A 12 PD 11 10 12 D2O SDCLK/ 8kHz SE SDO1 PD 11 Output 12 (Mu/A) 8 kbps PD Data Out Logic 1 8 kbps DataTx Out Logic 0 Tx Logic 1 SDO2 Tx 14 12 TE2 SE/(Mu/A) EN1-TE1 15 TE1 14 TE1 15 13 18 MSI/TONE 13 MSI 13 (Tone) TE 16 14 19 CCI/XTALin 17 CCI 16 (XTALin) X1 20 TDC-RDC/ XTALout 18 TDC/RDC 17 (XTALout) X2 17 15 18 21 LI SENS/ 2.048 MHz 22 RE1/CLKOUT 23 RE2/BCLK 24 Rx 19 25 LO2 26 LO1 27 MASTER/ SLAVE 14 15 11 13 17 B1B2 Logic 0 Logic 0 LI SENS 2.048 MHz Out 16 17 19 18 20 20 RE1 18 (BCLK) CLK Rx 19 Rx 22 LO2 22 LO2 21 19 22 23 LO1 23 LO1 23 20 21 Logic 0 24 VDD Input 10 SIE VDD DI1 8 kbps Data In DI2 8 kbps Logic 1 Data In DCLK 0 D1O SO1 14 28 VD Digital Out 8 Input 9 EN2-TE2/SIE/ B1B2 High Impedance 1LB DCLK FRAME D1O 10/20 Tx RE1 SDI2 Logic 1 LI In Analog 8 8 9 E8E R F 16 20 LI LI Logic 1 24 VDD 24 22 TE1 PD Output 13 0 Digital Out 8 kbps Data In 8 kbps Data In 0 SDCLK/8kHz 8 kbps Data Out 8 kbps Data Out 14 Input 1=EN2 Mu, 0=A I/O15 EN1 1 1 TONE 0 0 (XTALin) CCI 64 kbps (XTALout) XTL Data Out 64 kbps Data Out MSI 16 MOD Input TRI/SQ CCI 17 Tx Output TDC/RDC 18 EN2-TE2/ Logic 0 SIE/B1B2 LI SENS EN1-TE1 RE1 MSI/ RE2 TONE Rx CCI/ LO2 XTAL in Analog In Input 1/0 B1B2 2.048 MHz Out 1= Mu, 0=A 1/0 B1B2 Output 19 Input 20 EN1 = 8 kHz CLKOUT 1/0 TONE BCLK 21 Input 22 Rx XTALin 4.096LO2 MHz LO1 TDC-RDC/ XTALout Logic 0 23 Output LI SENS/ 2.048 MHz VDD RE1/ CLKOUT Output LO1 XTAL out 4.096 MHz Logic 1 2.048 MHz 2.048 MHz 24 Output VDD RE1 = 8 kHz RE1 = 8 kHz For More Information On This Product, TELECOMMUNICATIONS Go to: www.freescale.com EN1 = 8 kHz 1/0 TONE XTALin 4.096 MHz XTALout 4.096 MHz TELECOMMU Freescale Semiconductor, Inc. MC145423 PIN DESCRIPTIONS VSS Negative Supply (Pin 1) This is the most negative power pin, and should be tied to system ground (0 V). Freescale Semiconductor, Inc... Vref Voltage Reference Output (Pin 2) This is the output from the internal reference supply (mid-supply) and should be bypassed to both VSS and VDD with 0.1 µF capacitors. This pin usually serves as an analog ground reference for transformer coupling of the device’s incoming bursts from the line. No external load should be placed on this pin. LI Line Input (Pin 3) CT 21 Input Digital In ULI SENS/ SDI1 and SDI2 D 2.048 MHz LI Sensitivity N D ChannelOSignaling Data Bit Inputs 1 and 2 22 RE1/ Input RE1 8 kHz C 7) (Pins 6Iand EM IV H LB RC A Loopback Low Input (Pin 4) Master Mode: A low on this pin ties the internal modulator output to the internal demodulator input, which loops the entire burst for testing purposes. During the loopback operation, the LI input is ignored, and the LO1 and LO2 outputs are driven to equal voltages. The state of the LB pin is internally latched if the SE pin is held low. This feature is only active when the PD input is high. Slave Mode: When this pin is low and PD is high, the incoming B channels from the master are burst back to the master, instead of the Rx B channel input data. The SDI1 and SDI2 functions operate normally in this mode, and the BCLK (pin 23) is held low. Additionally, for both the UDLT-1 and UDLT-2 mode, when the TONE (pin 18) and loopback functions are active simultaneously, the loopback function overrides the TONE function. VD Valid Data Output (Pin 5) A high level on this pin indicates that a valid line transmission has been demodulated. A valid line transmission burst is determined by proper Digit LI Sen RE1 8 CLKOUT These inputs are the SMaster Mode (UDLT-1): RE2/ Don’t Care High Impedance E8 kbps serial23data inputs in UDLT-1 mode. Data on L A these pins is loaded onBCLK the rising edge of MSI for C S 24 Rx Input 64 kbps Data In This pin is the input to the demodulator for the E E incoming bursts. This input has an internal 240 kΩ R F resistor tied to the Vref pin, so an external capacitor or Y line transformer may be used to couple B the input signal to the device with no dc offset. ED 20 synchronization and the absencePIN of detected bitFOR errors. MC145423 UDLT-3 STATES UDLT-1 MAS VD is a CMOS output and is high impedance when SE UDLT-1 Ma is low. MC145423 Power Master Mode: VD changes state on the rising Pin Pin edge of MSI, when PD is high. When PD is low, VD No. Name In/out Normal LB L changes state at the end of demodulation of a EN1-TE1 Input TE1 8 transmission17burst and does not change again TE1 until8 kHz 18 edges MSI/TONE Inputat which MSI 8 kHz MSI 8 three MSI rising have occurred, time it goes low, or19 until the next a burst. CCI/ demodulation Input of CCI 2.048 MHz CCI 2.04 . Slave Mode: If no transmissions from the master XTAL in NC250 µs, as I have been received within the last 20 TDC-RDC/ Input TDC-RDC TDC, R determined by an internal oscillator, VD will go low. XTAL Data Clk Data Oout High Imp 64 kbps transmission to the slave. The state of these pins is LO2 Output Modulator Out LO2 = latched if SE25is held low. Slave Mode inputs areModulator the 26 (UDLT-1): LO1 These Output Out LO1 = 8 kbps serial27data inputs in UDLT-1 mode. Data on MASTER/ Input 0 0 these pins is loaded on the rising edge of TE1 for SLAVE transmission to the master. If no transmissions from 28 VDD Power +V +V the master are being received and PD is high, data on these pins will be loaded into the part on an internal signal. Therefore, dataUDLT-3 on these PIN pins STATES should be FOR steadyUDLT-2 SLAV MC145423 until synchronous communication with the master has been established, as indicated by the high on VD. Master Mode (UDLT-2): These inputsUDLT-2 are the Slave Mode MC145423 Powered-Up 16 kbps serial data inputs in UDLT-2 mode. Two bits Pin Pin should be clocked into each of these inputs between No. of the Name In/out the rising edges MSI frame referenceNormal clock. The LB Low 1 D channel VSS is clocked Power into Power first bit of each an Supply Power Supply Gnd intermediate buffer on the first falling edge Gnd of the SDCLK following the of MSI. AGND The second AGND 2 Vrefrising edge Analog VDD/2 VDD/2 bit of each D channel is clockedRef in on the next negative transition of the SDCLK. If further SDCLK 3 LI Input Analog In Analog In negative edges occur, new information is serially Input 1 0 4 LB clocked into the buffer replacing the previous data, 5 VD Output bitsDigital Out to Digital Out one bit at a time. Buffered D channel are burst the slave on 6the nextSDI1 rising edge of the MSI Input 16 frame kbps 16 kbps Data In if SE Data In reference clock. The state of these pins is latched is held low. 7 SDI2 Input 16 kbps 16 kbps In Data In Slave Mode (UDLT-2): These inputs Data are the 16 kbps serial data inputs in UDLT-2 mode. The D 8 FRAME Input 1 1 channel data bits are10/20 clocked in serially on the negative edge of the 16 kbps SDCLK output pin. 9 SDCLK Output 16 kHz 16 kHz For More Information On This Product, TELECOMMUNICATIONS Go to: www.freescale.com TELECOMMU Freescale Semiconductor, Inc. MC145423 MC145423 UDLT-3 PIN STATES FOR UDLT-2 SLAVE MODE (continued) MC145423 UDLT-3 PIN STATES FOR UDLT-2 MAS UDLT-2 Slave Mode Powered-Up MC145423 Freescale Semiconductor, Inc... UDLT-2 Slave Mode MC145423 UDLT-2 Maste Powered-Down Pin Pin TONE = 0, Off Name TONE = 1, On Normal No. In/out LB L Pin No. Pin Name In/out Normal LB Low No Valid Burst Rec’d 10 SDO1 Output 16 kbps Data Out 16 kbps Data Out Data Not Changed 11 SDO2 Output 16 kbps Data Out 16 kbps Data Out Data Not Changed 12 SE/ (Mu/A) Input 1/0 Mu/A 1/0 Mu/A 1/0 Mu/A 13 PD I/O 1 1 14 MOD TRI/SQ Input 1 1 15 Tx Output 128 kbps Data Out* 16 EN2-TE2/ SIE/B1B2 Output EN2 8 kHz 17 EN1-TE1 Output 18 MSI/ TONE Input EN1 8 kHzY B 1/0 Tone D E IV Input CH XTAL AR 8.192 MHz 19 CCI/ XTALin 20 TDC-RDC/ XTALout Output 21 LI SENS/ 2.048 MHz 22 1/0 Tone No Valid Power Burst Rec’d Data Not Ref 2 16 kbpsVref Analog Data Out Changed 3 LI Input . 16 kbps DataCNot 4 LB Input N Data Out I , Changed 5 VD R Output 1/0 1/0 O T 6 Mu/A Input Mu/A CSDI1 U 7 D 0 SDI2 0 N O 10/ 1 1 IC 8 FRAME 20 M E SHigh EImpedance L CA EN2 = 0 EN2 8 S kHz EE R FEN1 8 kHz EN1 = 0 128 kbps Data Out* 1 ValidVSS Burst Rec’d 0 No Tone 9 64 kbps SDCLK Data Out 10 SDO1 11 XTAL 8.192 MHz XTAL 8.192 MHz XTAL 8.192 MHz XTAL 8.192 MHz Output 2.048 MHz 2.048 MHz 2.048 MHz RE1/ CLKOUT Output RE1 8 kHz RE1 8 kHz RE1 0 23 RE2/ BCLK Output BCLK 128 kHz BCLK = 0 BCLK 128 kHz 24 Rx Input 128 kbps Data In Don’t Care Don’t Care 25 LO2 Output Modulator Out Modulator Out 26 LO1 Output Modulator Out 27 MASTER/ SLAVE Input 28 VDD Power 1 Input Power Gn 16 kbpsVDD/2 AGND Data Out Analog In 16 kbps 1 Data Out Digital Out 1/0 16Mu/A kbps Data In 16 kbps 16 kbps 0 Data In 16 kbps 1 1 AGND Don’t 0 Digita 1 EN2 = 0 Input 500 Hz ToneOutput Out EN2 8 kHz 50016 HzkHz Tone Out Data 16 kbps Out EN2 8 kHz 16 kbp Ou SDO2 EN1 = 0 Output EN1 8 kHz 16 kbps Data Out EN1 8 kHz 16 kbp Ou 120 NoSE/(Mu/A) Input Tone 1 No Tone 13 XTAL 8.192 MHz 0 Input Valid Supply Power Burst Rec’d Gnd PD Input 1 Tone1 1 16 k 1 1 14 XTAL MOD TRI/SQ XTAL Input 8.192 MHz 8.192 MHz 15 Tx Output XTAL XTAL 8.192 MHz 8.192 MHz 16 EN2-TE2/ Input 2.048SIE/B1B2 MHz 2.048 MHz XTAL1 8.192 MHz 128 kbps* XTAL Data Out 8.192 MHz TE2 8 kHz 2.048 MHz 17 EN1-TE1 Input RE1 0 RE1 8 kHz 18 MSI/TONE Input TE1 8 kHz RE1 8 kHz 8 kHz TE1 8 19 CCI BCLK 4.096 MHz 128 kHz TDC-RDC 128Data kbpsClk Data In Digital In LO2Sensitivity = LO1 CC 4.096 LO2 = LO1 CCI/XTALin Input BCLK BCLK 128 kHz 128 kHz Input 20 TDC-RDC/ Don’t Care XTALout 128 kbps Data In 21 LI SENS/ Input LO2 = LO1 MHzLO2 = LO1 2.048 Modulator Out LO2 = LO1 22 RE1/ Input LO2 =CLKOUT LO1 LO1 = LO2 RE1 8 kHz LO1 = LO2 RE1 8 23 1 1 1 RE2 8 kHz RE2 8 1 128 kbps Data In 128 kbps +V +V +V * Tx is high impedance when TE1 and TE2 are both low, simultaneously. Tx is undefined when TE1 and TE2 are both high, simultaneously. 24 25 26 RE2/BCLK 1 Rx +V LO2 LO1 Input 1 Input Output +V Output Modulator Out +V Modulator Out 1 128 k Data TE2 8 8k TDCData Digit Sens LO2 = LO1 = 27 MASTER/ SLAVE Input 0 0 28 VDD Power +V +V * Tx is high impedance when TE1 and TE2 are both low, simultaneous Tx is undefined when TE1 and TE2 are both high, simultaneously. 18 For More Information On This Product, TELECOMMUNICATIONS Go to: www.freescale.com TELECOMMU MC145423 Freescale Semiconductor, Inc. which is simultaneous with the transfer of the transmit FRAME 10/20 word. See(Pin the pin 8) descriptions for EN2-TE2/SIE/ B1B2 and EN1-TE2 for more information. The UDLT series of transceivers are designed to Master Mode (UDLT-2): B channel data is input operate using a ping-pong transmission scheme with on this pin and controlled by the RE1, RE2, and TDCan 8 kHz burst rate. Each frame the master device RDC pins. “pings” a burst of data to the slave, which responds Slave Mode (UDLT-2): This pin is an input for with a “pong” burst of data. This pin selects whether the B channel data. B channel 1 data is clocked in on this 8 kHz frame will have a 10-bit data burst for the first eight falling edges of the BCLK output UDLT-1 compatibility or .a 20-bit data burst for following the rising edge of the EN1 C output. B channel UDLT-2 compatibility. Neight RE2/BCLK I 2 data is clocked in on the next edges of , selectsfalling A logic low (0RV) the UDLT-1 (MC145422/ Receive Data Enable Input 2 or B Channel the BCLK following theOrising edge of the EN2 MC145426)T mode. This sets the device to operate with Data Clock Output (Pin 23) output. C one 64 kbps voice/data channel and two 8 kbps U D Master Mode (UDLT-1): This pin is high signaling N channels. A logic high (VDD) on this pin LO2 O impedance. selects the UDLT-2 (MC145421/MC145425) mode. Line Drive (Pin 25) IC Output Master Mode (RE2 UDLT-2): See pin M This sets the device to operate with two 64 kbps E LO2 pin, along with LO1 (pin 26) form a pushdescription for RE1 (pin 22). SThe channels and two 16 kbps (2B+2D). Epull output, to drive the twisted pair channels Slave Mode (BCLK UDLT-1 and UDLT-2): transmission line. L drives the twisted pair with a 10-bit, This output provides the data clock for the telset SDCLK CA The UDLT-1 S E 256 kHz modified DPSK (MDPSK) burst, or a square codec-filter. This clock signal is 128 kHz and begins D Channel Signaling Data Clock Input (Pin 9) E R wave (set by pin 14 MOD TRI/SQ) burst, each 125 µs. operating upon the successful demodulationFof a burst Master Mode (UDLT-2): This is the transmit and Y high and The UDLT-2 drives the twisted pair with a 20-bit from the master. At this time, EN1-TE1Bgoes receive data clock input for both D channels. See 512 kHz modulated burst. When these pins are idle BCLK starts toggling. BCLK remains D active for SDO1 and SDO2 pin descriptions for more VE it remains low and set for square wave modulation, they rest at the 16 periods, at the end of whichItime information. Hfrom the master. In this positive power supply voltage. When these pins are until another burst is received C Master Mode (UDLT-1): High impedance. idle and set for MDPSK, they rest at Vref. For power manner, synchronization ARbetween the master and slave Slave Mode (UDLT-2): This is the transmit and supply voltages less than 4.5 V, squarewave is established and any clock slippage is absorbed each receive data clock output for both D channels. It starts modulation must be used. frame. If TONE (pin 18) is brought high, then EN1on demodulation of a burst from the master device. TE1/RE1 are generated from an internal oscillator This signal is rising-edge aligned with the EN1 and LO1 until TONE is brought low, or an incoming burst from BCLK signals. After Line Driver Output (Pin 26)the demodulation of a burst, the the master is received. BCLK is disabled when LB is SDCLK line completes two cycles and then remains held low. See thelow pin until description LO2from (pinthe 25).master is the nextfor burst demodulated. In this manner, synchronization with the Rx MASTER/SLAVE master is established and any clock slip between Receive Data Input (Pin 24) Master/Slave Mode (Pin 27) master and slave is absorbed each frame. Master Mode (UDLT-1): The 8-bit B channel A logic low (0 V)Mode on this(UDLT-1): pin selectsThis master a 8 kHz Slave pin and outputs data is clocked into the device on this pin, on the logic highequivalent (VDD) selects slave. to TE1. falling edges of TDC-RDC, under the control of RE1. VDD Slave Mode (UDLT-1): The 8-bit B channel data SDO1 and SDO2 PositiveDSupply (Pin 28) from the telset PCM codec-filter is input on this pin on Channel Signaling Data Outputs 1 and 2 the eight falling edges of BCLK after RE1 goes high, (Pins 10 and 11) This is the most positive power supply pin. when EN2-TE2/SIE/B1B2, pin 16 is low. When EN2Acceptable operating voltages are from These 4.5 V to 5.5 V. Master Mode (UDLT-2): serial outputs TE2/SIE/B1B2, pin16 is high, the receive data word is provide the 16 kbps D channel signaling information latched in during the high period of EN1-TE1, pin 17 from the incoming burst. Two data bits should be clocked out of each of these two outputs between the rising edges of the MSI frame reference clock. The rising edge of MSI produces the first bit of each D channel on its respective pin. Circuitry then searches for a negative D channel clock edge. This Freescale Semiconductor, Inc... data buffer with data from the Rx pin on the next eight falling edges of the TDC-RDC clock. The RE1 and RE2 enables should be roughly leading edge aligned with the TDC-RDC data clock. These enables are rising edge sensitive and need not be high for the entire B channel input period. Slave Mode (CLKOUT UDLT-2): This pin serves as a buffered output of the crystal frequency divided by two. 24 For More Information On This Product, TELECOMMUNICATIONS Go to: www.freescale.com TELECOMMU MC145423 Freescale Semiconductor, Inc. Freescale Semiconductor, Inc... 250 µs have elapsed without a burst from the master being successfully demodulated. This allows the slave device to self power-up and power-down in demand powered loop systems. When held low, the device powers down and the only active circuitry, is that which is necessary for the demodulation of data. When held high, the device is powered up and transmits normally in response to received bursts from the master. of the incoming wordupdated at the Rx beedge transmitted pin is also on pin the will rising of the EN1 to the slave. The PCM word to the slave will have LSB signal. forced low in this mode. In this manner, signal bit 2 to/ MSI/TONE from the slave UDLT is inserted into the PCM words Sync Inputfrom or Tone Enable Input the masterMaster sends and receives the backplane, for (Pin 18) routing through the PABX for simultaneous voice/data communication. The Mode state of(MSI): this pinThis is internally Master pin is the master 8 kHz latched if frame the SEreference pin is brought low. input. and Theheld rising edge of MSI loads Slave B Mode (UDLT-1): In this mode, this is during the and D channel data, which had beenpin input . an input and selects the timeslot used for transferring previous frame, into theCmodulator section of the N pin MOD TRI/SQ Ithe the receive data word. When, this is low, burst the device device, and initiates outbound onto the Modulation Select (Pin 14) R uses the RE1 pin pair timing the same as the MC145426 twisted cable. The rising edge of MSI also O T UDLT-1 slave. When this pin is a logic 1, the receive Cbuffering of the B and D channel data A logic low (0 V) on this pin selects the MDPSK initiates the word is latched inU during the TE1 timeslot, frame. MSI should D modulation which has a slew controlled voltage output demodulated during the previous N simultaneously with the transmit word for reduced EMI/RFI. This output looks like a triangle beOapproximately leading edgetransfer. alignedThe with the TDCC I RE1 pin timing is not affected by this selection. waveform that is modulated with different angles for RDC data clock input signal. EM Mode UDLT-2): In this mode, Slave(EN2-TE2 Mode (TONE): the peaks. A logic high (VDD) on this pin, selects A high on this pin causes a SMaster E this pin functions as EN2-TE2. This pin, along with square wave output for maximum power to the line. 500 Hz square wave PCM tone to be inserted in place L the outputdata. of data forfeature their allows the of control the demodulated This CA TE1 pin-17 S Tx respectivedesigner B-channel on the Tx output pin. When both keyboard to provide audio feedback for telset EE Transmit Data Output (Pin 15) TE1 and TE2 are low, the Tx pin is high impedance. R depressions. F The rising edge of the respective enable produces the Y Master Mode (UDLT-1): This pinB is high first bit ofCCI/XTAL the selected inB-channel data on the Tx pin. D impedance when TE1 is low. When TE1 is high, this E Convert Clock Crystal Input (Pin 19) Internal circuitry then scansInput for theornext negative IVdata on rising edges pin presents new 8-bit B channel H transition of the TDC-RDC clock. Following this Master Mode (CCI UDLT-1): A 2.048 MHz of TDC-RDC. RC event, the next seven bits of the selected B-channel A Slave Mode (UDLT-1): B channel data is output clock signal should be applied to this pin. This signal data are output on the next seven rising edges of the on this pin on the rising edge of BCLK, while TE1 is is used for internal sequencing and control. This signal TDC-RDC data clock. When TE1 and TE2 are high high. This pin is high impedance when TE1 is low. should be frequency and phase coherent with MSI for simultaneously, data on the Tx pin is undefined. TE1 Master Mode (UDLT-2): This pin is high optimum performance. and TE2 should be approximately leading-edge Slave Mode (XTALin UDLT-1): A 4.096 MHz impedance when both TE1 and TE2 are low. This pin aligned with the TDC-RDC data clock. To keep the Tx serves as an output for B channel information received crystal is tied between this pin and XTALout (pin 20). pin out of the high impedance state, these enable lines from the slave device. The B channel data is under A 10 MΩ resistor across this pin and XTAL and should be high while the respective B channel data is out control of TE1 and TE2 and TDC-RDC. 25 pF capacitors from this pin and XTALout to VSS being output. Slave Mode (UDLT-2): This pin is an output for are required for stability and to ensure start-up. This Slave Mode (EN2-TE2 UDLT-2): Functioning as the B channel data received from the master. pin may be driven from an external source. XTALout EN2-TE2, this pin is an output and serves as an 8 kHz B channel 1 data is output on the first eight cycles of should be left open if an external signal is used on this enable signal for the input and output of the B channel the BCLK output when EN1 is high. B channel 2 data input. 2 data. While EN2 is high, B channel 2 data is clocked Master Mode (CCI UDLT-2): An 8.192 MHz is output on the next eight cycles of the BCLK, when out on the Tx pin on the eight rising edges of the clock should be supplied to this input. The 8.192 MHz EN2 is high. B channel data bits are clocked out on the BCLK. During this same time, B channel 2 input data input should be 50% duty cycle. This signal may free rising edge of the BCLK output pin. is clocked in on the Rx pin, on the eight falling edges run with respect to all other clocks without of the BCLK. EN2-TE2/SIE/B1B2 performance degradation. B Channel 2 Enable Output or EN1-TE1 Slave Mode (XTALin UDLT-2): Normally, an Signal Insert Enable (Pin 16) 8.192 MHz crystal is tied between B Channel 1 Enable Output (Pin 17) this pin and the XTAL (pin 20). A 10 MΩ resistor between out Master Mode (SIE UDLT-1): In this mode, this This pin is the logical inverse of EN2-TE2, and XTALin and XTALout and 25 pF capacitors from pin functions as SIE. When held high, this pin causes serves to control B channel 1 data. See the above pin to ensure XTAL and XTAL to V are required in out SS signal bit 2, as received from the slave, to be inserted description for more EN1 serves as the stability andinformation. start-up. XTAL in may also be driven with into the LSB of the outgoing PCM word at the Tx pin. slave device’s 8 kHz 8.192 frame MHz reference signal. The VD an external signal if a crystal is not The SDI2 pin will be ignored, and in its place, the LSB 22 For More Information On This Product, TELECOMMUNICATIONS Go to: www.freescale.com TELECOMMU Freescale Semiconductor, Inc. A A N = 0.5 B D TIP DT SUFFIX TSSOP PACKAGE CASE 1168-01 N = 0.5 MC145423 b1 C 15 GAGE PLANE A1 θ° 0.25 L N=2 110 Ω MOD TRI/SQ MASTER/SLAVE LO1 LO2 5V VD SDCLK SDO1 SDO2 MSI/TONE 2.048 MHz CCI/XTAL MC145423 UDLT-3 SLAVE MODE SDI2 75 kΩ TI– TI+ PO+ TG 28 For More Information On This Product, TELECOMMUNICATIONS Go to: www.freescale.com 1 kΩ 1 kΩ 5V 68 µF REC 5V PO– MC145484 VIEW A A2 0.1 µF (θ 1°) MILLIMETERS MIN MAX --1.20 0.05 0.15 0.80 1.05 0.19 0.30 0.19 0.25 0.09 0.20 0.09 0.16 9.60 9.80 0.65 BSC 6.40 BSC 4.30 4.50 0.50 0.70 0° 8° 14° REF VSS A DIM A A1 A2 b b1 c c1 D e E E1 L θ θ1 EN2-TE2 (I/O)/SIE A SEATING PLANE 0.01 µF CH R SIDE AVIEW 0.1 M A MCLK VAG VAG-REF 28X b BY 0.2 5. Rx RE1/CLKout RE2/BCLK A ED V IB C EE 28X R F 4. DIMENSIONS IN MILLIMETERS. DIMENSION D DOES NOT INCLUDE MOLD PROTRUSION. ALLOWABLE MOLD PROTRUSION IS 0.15 PER SIDE. DIMENSION E1 DOES NOT INCLUDE INTERLEAD FLASH OR MOLD PROTRUSION. INTERLEAD FLASH OR PROTRUSION SHALL NOT EXCEED 0.25 PER SIDE. DIMENSION b DOES NOT INCLUDE DAMBAR PROTRUSIONS. DAMBAR PROTRUSION SHALL NOT CAUSE THE LEAD WIDTH TO EXCEED 0.38. DT (D) S 2. 3. PD RO– PI 0.05 LE A SC O IC EM LB LI Vref TOP VIEW PD END VIEW VIEW A FSR C Mu/A B VDD A Tx EN1-TE1 (I/O) 0.2 2X 14 TIPS e DR 26X VDD e/2 5V Freescale Semiconductor, Inc... 14 2X BASIC DIGITAL TELSET 1 PIN 1 INDEX 5V 4.7 kΩ R, O CT NOTES: U 1. DIMENSIONS AND TOLERANCING PER ASME ND Y14.5M, 1994. 110 Ω (b) . C N I SECTION A-A E1 SE/(Mu/A) SDI1 4.7 kΩ E/2 E c1 N=4 c FST BCLKT BCLKR 28 TELECOMMU Freescale Semiconductor, Inc. MC145423 MULTICHANNEL DIGITAL LINE CARD PACKAGE D POWER SUPPLY DW SU SOIC PA CASE 7 Freescale Semiconductor, Inc... SDO1 LE A SC LB VD RING POWER SUPPLY CH R A TIP ED V I BY EE R F FRAME 10/20 VSS M B M . 0.25 R, O 1 CT U B PIN 1 IDENT EN2-TE2(I/O)/SIE D SE/(Mu/A) ON IC MASTER/SLAVE M MOD SELECT SE UDLT-3 PD MASTER RE1/CLKOUT MODE EN1-TE1 (I/O) SDO2 SDCLK RE2/BCLK LI SENS/2.048 MHz C IN TO BACKPLANE H CCI/XTALin 15 TRANSMIT DATA BUS RECEIVE DATA BUS 2.048 MHz DATA CLOCK 14 A SDI2 28 Rx TDC/RDC/XTALout LO2 LI SDI1 D 8 kHz FRAME SYNC A Tx E TIP MSI/TONE 0.10 A1 VDD LO1 Vref e B C 0.025 M C A S B SEATING PLANE S TO BACKPLANE VDD LO1 Vref LO2 LI MSI/TONE TIMING AND CONTROL Tx Rx TDC/RDC/XTALout CCI/XTALin UDLT-3 PD MASTER RE1/CLKOUT MODE EN1-TE1 (I/O) SDO1 EN2-TE2(I/O)/SIE SDO2 SDI1 SDI2 SDCLK RE2/BCLK LI SENS/2.048 MHz LB VD SE/(Mu/A) MASTER/SLAVE MOD SELECT FRAME 10/20 VSS RING 26 For More Information On This Product, TELECOMMUNICATIONS Go to: www.freescale.com TELECOMMU Freescale Semiconductor, Inc... Freescale Semiconductor, Inc. CH R A ED V I BY EE R F LE A SC S O IC EM R, O CT U ND MC145423 C IN . Digital DNA is a trademark of Motorola, Inc. Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”, must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. 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