STV0190

STV0190 DUAL 40 MSPS 6-BIT ANALOG TO DIGITAL CONVERTER APPLICATIONS QPSK DEMODULATION IN A SATELLITE DECODER . . . . . . ADVANCE DATA RESOLUTION 6-BIT MAX. SAMPLING FREQUENCY : 40 MSPS TTL DATA OUTPUTS BUILT-IN SAMPLING AND HOLD CIRCUIT DUAL ADC ON CHIP TO IMPROVE CHANNEL MATCHING DESCRIPTION The STV0190 is a dual 40 MSPS 6-bit Analog to Digital converter. It is dedicated to QPSK demodulation in Satellite receiver. The Flash architecture combined with interpolation technic gives the best trade off between power consumption and maximum conversion speed. PIN CONNECTIONS VCCO OGND AGND VTO P VINA VMIDA VMIDB VINB VBOT VCCA DGND VCCD CLKIN OGND 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 D5B D4B D3B D2B D1B D0B D5A D4A D3A D2A D1A D0A SO28 (Plastic Micropackage) ORDER CODE : STV0190 VCCO May 1996 This is advance information on a new product no w in development or undergoing evaluation. Details are subject to change without notice. 1/7 0190-01.EPS CLKOUT STV0190 PIN CONFIGURATION Pin N° 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 to 22 23 to 28 Symbol VCCO OGND AGND VTOP VINA VMIDA VMIDB VINB VBOT VCCA DGND VCCD CLKIN OGND VCCO CLKOUT D0A to D5A D0B to D5B Output Buffer Ground Channel A + B Analog Ground Top Reference Voltage Analog Input Channel A Reference Voltage DC Coupling Channel A Reference Voltage DC Coupling Channel B Analog Input Channel B Bottom Reference Voltage Analog Supply Voltage Digital Ground Digital Supply Voltage Clock Input Output Buffer Ground Channel A + B Output Buffer Supply Voltage Channel A + B D0 (LSB) to D5 (MSB) Outputs Channel A D0 (LSB) to D5 (MSB) Outputs Channel B 0190-01.TBL Function Output Buffer Supply Voltage Channel A + B Clock Output 2/7 STV0190 BLOCK DIAGRAM VCCA 10 VCCD 12 VCCO 1 15 S TV0190 VTOP 4 22 D5A 21 D4A VINA 5 ADC A TTL OUTP UT LATCHES 20 D3A 19 D2A 18 D1A 17 D0A VMIDA 6 28 D5B 27 D4B VINB 8 ADC B TTL OUTP UT LATCHES 26 D3B 25 D2B 24 D1B 23 D0B 16 CLKOUT VMIDB 7 VBOT 9 3 AGND 11 DGND 2 14 OGND 0190-02.EPS CLOCK DRIVER 13 CLKIN 3/7 STV0190 ABSOLUTE MAXIMUM RATINGS Symbol Analog Supply Voltage Digital Supply Voltage Toper Operating Temperature Parameter Value 3.1, 3.45 3.1, 3.45 0, +70 Unit V o 0190-02.TBL 0190-03.TBL V C ELECTRICAL CHARACTERISTICS (VCC = 3.3V, T amb = 0 to 70oC, Full scale 10MHz, 1.5VPP input, 40MSPS, CL = 20pF, unless otherwise specified) Symbol ANALOG INPUT Differential Reference Voltage Variation of Channel A to Channel B (FS) RIN Input Resistance Input Bandwidth 3dB DIGITAL OUTPUTS High Logic Voltage Low Logic Voltage High Logic Current Low Logic Current Logic Format Analog Input most positive input 2.4 0 -4 4 Digital Output 111111 111110 ............ 100001 100000 011111 011110 ............ 000001 000000 9 5 1 1 4 ns ns ns ns ns VCC 0.4 V V mA mA VTOP - VBOT 0.5 LSB 20 20 1 1.5 8 VPP mV kΩ MHz Parameter Test Conditions Min. Typ. Max. Unit least positive input tPD tV tSKEW tAPER tR, tF Output Timing Output Timing Data Output Skew TSK (all outputs, settled within 20%) Aperture Delay relative to Data Clock Data Output Rise and Fall Time See Figure 1 See Figure 1 See Figure 1 See Figure 1 63 62 .... 33 32 31 30 .... 1 0 CLOCK INPUT VIH VIL IIH IIL tCL High Input Voltage Low Input Voltage High Input Current Low Input Current Clock Duty Cycle Clock Period See Figure 1 TBD 40 24 60 2.0 0 VCC 0.8 TBD V V µA µA % ns 4/7 STV0190 ELECTRICAL CHARACTERISTICS (continued) Symbol CLOCK OUTPUT VOH VOL IOH IOL tCL High Ouput Voltage Low Output Voltage High Output Current Low Output Current Clock Duty Cycle Clock Period REFERENCE LADDER Top Voltage Bottom Voltage DC Bias Restoration Error ZVTOP/VBOT CROSSTALK Isolation A/B DC ACCURACY Integral non Lin. Diff. Non Lin. AC ACCURACY (fIN = 10MHz, FS = 40 MSPS, VIN = 95% FSCALE) Effective Number of Bit SNR THD THD First 5 Harmony Integral non Lin. A/D Amplifier Response Mismatching 5 33 33 -1 +1 0.2 bits dB dB LSB dB 0190-04.TBL 0190-03.EPS Parameter Test Conditions Min. Typ. Max. Unit 2.4 0 -4 VCC 0.4 4 V V mA mA % ns 40 24 60 VCC - 0.5 VCC + 0.5 Open input digital output should be 32/64 011111 90 33/64 100000 V V Input Impedance Ω 37 dB -0.5 -0.5 +0.5 +0.5 LSB LSB Figure 1 : Timing Diagram N ANALO G S IGNAL tAPER C LOCK OUT S IGNAL tP D DIGITAL S IGNAL tS KEW Note : This diagram shows a delay of one clock cycle. Additionnal integer multiple delay periods are acceptable. Output data must be valid on the rising edge of the clock out signal. N+2 N+1 tCL tV Da ta for N Da ta for N+1 Da ta for N+2 5/7 STV0190 TYPICAL APPLICATION VCCA 100 Ω 100nF 10 µ F VCCD 100nF 10 µ F 10 µF 100nF VCCO VTOP 0.1 µ F 4 VMIDA 0.1 µF 6 10 12 1 15 22 21 0V 5 ADC A TTL OUTP UT LATCHES 20 19 18 17 VBOT 9 D5A D4A D3A D2A D1A D0A 0V VINA 0.1 µF VMIDB 0.1 µ F 7 28 27 D5B D4B D3B D2B D1B D0B CLKOUT CLKIN 100 Ω 0V VINB 0V 8 ADC B TTL OUTP UT LATCHES 26 25 24 23 16 CLOCK DRIVER 13 S TV0190 3 11 2 14 0190-04.EPS AGND DG ND O GND 6/7 STV0190 PACKAGE MECHANICAL DATA 28 PINS - PLASTIC MICROPACKAGE (SO) Dimensions A a1 b b1 C c1 D E e e3 F L S Min. 0.1 0.35 0.23 Millimeters Typ. Max. 2.65 0.3 0.49 0.32 45 (Typ.) o Min. 0.004 0.014 0.009 Inches Typ. Max. 0.104 0.012 0.019 0.013 0.5 17.7 10 1.27 16.51 7.4 0.4 7.6 1.27 8 (Max.) o 0.020 18.1 10.65 0.697 0.394 0.050 0.65 SO28TBL 0.713 0.419 0.291 0.016 0.299 0.050 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No licence is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without noti ce. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. © 1996 SGS-THOMSON Microelectronics - All Rights Reserved Purchase of I2C Components of SGS-THOMSON Microelectronics, conveys a license under the Philips I2C Patent. Rights to use these components in a I2C system, is granted provided that the system confo rms to the I2C Standard Specifications as defined by Philips. SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. 7/7 PM-SO28.EPS