ICS97ULP877BKLF

ICS97ULP877B 1.8V Low-Power Wide-Range Frequency Clock Driver Recommended Application: • DDR2 Memory Modules / Zero Delay Board Fan Out • Provides complete DDR DIMM logic solution with ICSSSTU32864/SSTUF32864/SSTUF32866/ SSTUA32864/SSTUA32866/SSTUA32S868/ SSTUA32S865/SSTUA32S869 Pin Configuration 1 3 4 5 6 A B C D E Product Description/Features: • Low skew, low jitter PLL clock driver • 1 to 10 differential clock distribution (SSTL_18) • Feedback pins for input to output synchronization • Spread Spectrum tolerant inputs • Auto PD when input signal is at a certain logic state Switching Characteristics: • Period jitter: 40ps (DDR2-400/533) 30ps (DDR2-667/800) • Half-period jitter: 60ps (DDR2-400/533) 50ps (DDR2-667/800) • OUTPUT - OUTPUT skew: 40ps (DDR2-400/533) 30ps (DDR2-667/800) • CYCLE - CYCLE jitter 40ps 2 F G H J K 52-Ball BGA Top View A B C D E F G H J K 1 CLKT1 CLKC1 CLKC2 CLKT2 CLK_INT CLK_INC AGND AVDD CLKT3 CLKC3 2 CLKT0 GND GND VDDQ VDDQ VDDQ VDDQ GND GND CLKC4 3 CLKC0 GND NB VDDQ NB NB VDDQ NB GND CLKT4 4 CLKC5 GND NB VDDQ NB NB VDDQ NB GND CLKT9 5 CLKT5 GND GND OS VDDQ OE VDDQ GND GND CLKC9 6 CLKT6 CLKC6 CLKC7 CLKT7 FB_INT FB_INC FB_OUTC FB_OUTT CLKT8 CLKC8 LD* or OE CLKC0 LD*, OS or OE CLKT1 CLKC1 CLKT1 CLKT0 CLKC0 VDDQ CLKC5 CLKT5 CLKT6 CLKC6 VDDQ Block Diagram CLKC1 40 CLKT0 OE Powerdown Control and Test Logic OS AVDD 31 CLKT2 PLL bypass CLKC2 CLKT3 CLKC3 CLKT4 CLKC4 CLKT5 CLKC5 CLK_INT CLKT6 CLK_INC CLKC6 10K-100k PLL GND FB_INT FB_INC * The Logic Detect (LD) powers down the device when a logic low is applied to both CLK_INT and CLK_INC. CLKT7 30 1 ICS97ULP877B 10 21 CLKC7 11 20 CLKT8 CLKC8 CLKT9 CLKC9 FB_OUTT FB_OUTC 0981C—04/05/05 VDDQ CLKC2 CLKT2 CLK_INT CLK_INC VDDQ AGND AVDD VDDQ GND CLKT3 CLKC3 CLKC4 CLKT4 VDDQ CLKT9 CLKC9 CLKC8 CLKT8 VDDQ LD* 40-Pin MLF CLKC7 CLKT7 VDDQ FB_INT FB_INC FB_OUTC FB_OUTT VDDQ OE OS ICS97ULP877B Pin Descriptions Te r m i n a l Name Electrical Characteristics Description AGND Analog Ground Ground AVDD A n a l o g p ow e r 1.8 V nominal CLK_INT Clock input with a (10K-100K Ohm) pulldown resistor Differential input CLK_INC Complentar y clock input with a (10K-100K Ohm) pulldown resistor Differential input FB_INT Feedback clock input Differential input FB_INC Complementary feedback clock input Differential input FB_OUTT Feedback clock output Differential output FB_OUTC Complementary feedback clock output Differential output OE Output Enable (Asynchronous) LVCMOS input OS Output Select (tied to GND or VDDQ) LVCMOS input GND Ground Ground VDDQ Logic and output power 1.8V nominal CLKT[0:9] Clock outputs Differential outputs CLKC[0:9] Complementary clock outputs Differential outputs NB No ball The PLL clock buffer, ICS97ULP877B, is designed for a VDDQ of 1.8 V, a AVDD of 1.8 V and differential data input and output levels. Package options include a plastic 52-ball VFBGA and a 40-pin MLF. ICS97ULP877B is a zero delay buffer that distributes a differential clock input pair (CLK_INT, CLK_INC) to ten differential pair of clock outputs (CLKT[0:9], CLKC[0:9]) and one differential pair feedback clock outputs (FB_OUTT, FBOUTC). The clock outputs are controlled by the input clocks (CLK_INT, CLK_INC), the feedback clocks (FB_INT, FB_INC), the LVCMOS program pins (OE, OS) and the Analog Power input (AVDD). When OE is low, the outputs (except FB_OUTT/FB_OUTC) are disabled while the internal PLL continues to maintain its locked-in frequency. OS (Output Select) is a program pin that must be tied to GND or VDDQ. When OS is high, OE will function as described above. When OS is low, OE has no effect on CLKT7/CLKC7 (they are free running in addition to FB_OUTT/FB_OUTC). When AVDD is grounded, the PLL is turned off and bypassed for test purposes. When both clock signals (CLK_INT, CLK_INC) are logic low, the device will enter a low power mode. An input logic detection circuit on the differential inputs, independent from the input buffers, will detect the logic low level and perform a low power state where all outputs, the feedback and the PLL are OFF. When the inputs transition from both being logic low to being differential signals, the PLL will be turned back on, the inputs and outputs will be enabled and the PLL will obtain phase lock between the feedback clock pair (FB_INT, FB_INC) and the input clock pair (CLK_INT, CLK_INC) within the specified stabilization time tSTAB. The PLL in ICS97ULP877B clock driver uses the input clocks (CLK_INT, CLK_INC) and the feedback clocks (FB_INT, FB_INC) to provide high-performance, low-skew, low-jitter output differential clocks (CLKT[0:9], CLKC[0:9]). ICS97ULP877B is also able to track Spread Spectrum Clocking (SSC) for reduced EMI. ICS97ULP877B is characterized for operation from 0°C to 70°C. 0981C—04/05/05 2 ICS97ULP877B Function Table Inputs Outputs PLL AVDD OE OS CLK_INT CLK_INT CLKT CLKC FB_OUTT FB_OUTC GND H X L H L H L H Bypassed/Off GND H X H L H L H L Bypassed/Off GND L H L H *L(Z) *L(Z) L H Bypassed/Off GND L L H L *L(Z), CLKT7 active *L(Z), CLKC7 active H L Bypassed/Off 1.8V(nom) L H L H *L(Z) *L(Z) L H On 1.8V(nom) L L H L *L(Z), CLKT7 active *L(Z), CLKC7 active H L On 1.8V(nom) H X L H L H L H On 1.8V(nom) H X H L H L H L On 1.8V(nom) X X L L *L(Z) *L(Z) *L(Z) *L(Z) Off 1.8V(nom) X X H H Reser ved *L(Z) means the outputs are disabled to a low stated meeting the IODL limit. 0981C—04/05/05 3 ICS97ULP877B Absolute Maximum Ratings Supply Voltage (VDDQ & AVDD) . . . . . . . . . Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . Ambient Operating Temperature . . . . . . . . . . Storage Temperature . . . . . . . . . . . . . . . . . . . -0.5V to 2.5V GND - 0.5V to VDDQ + 0.5V 0°C to +70°C -65°C to +150°C Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings are stress specifications only and functional operation of the device at these or any other conditions above those listed in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect product reliability. Electrical Characteristics - Input/Supply/Common Output Parameters TA = 0 - 70°C; Supply Voltage AVDDQ, VDDQ = 1.8 V +/- 0.1V (unless otherwise stated) PARAMETER SYMBOL CONDITIONS MIN TYP Input High Current V I = VDDQ or GND IIH (CLK_INT, CLK_INC) Input Low Current (OE, V I = VDDQ or GND IIL OS, FB_INT, FB_INC) Output Disabled Low OE = L, V ODL = 100mV 100 IODL Current IDD1.8 CL = 0pf @ 270MHz Operating Supply Current IDDLD CL = 0pf Input Clamp Voltage VIK V DDQ = 1.7V Iin = -18mA High-level output I OH = -100 A VDDQ - 0.2 VOH voltage I OH = -9 mA 1.1 1.45 I OL=100 A 0.25 Low-level output voltage VOL I OL=9 mA CIN V I = GND or V DDQ 2 Input Capacitance1 1 COUT V OUT = GND or VDDQ 2 Output Capacitance 1 Guaranteed by design, not 100% tested in production. 0981C—04/05/05 4 MAX UNITS ±250 µA ±10 µA µA 200 500 -1.2 0.10 0.6 3 3 mA µA V V V V V pF pF ICS97ULP877B Recommended Operating Condition (see note1) TA = 0 - 70°C; Supply Voltage AVDD, VDDQ = 1.8 V +/- 0.1V (unless otherwise stated) PARAMETER Supply Voltage Low level input voltage High level input voltage DC input signal voltage (note 2) Differential input signal voltage (note 3) Output differential crossvoltage (note 4) Input differential crossvoltage (note 4) High level output current Low level output current Operating free-air temperature SYMBOL V DDQ, AVDD V IL VIH CONDITIONS MIN 1.7 CLK_INT, CLK_INC, FB_INC, FB_INT OE, OS CLK_INT, CLK_INC, FB_INC, 0.65 x VDDQ FB_INT OE, OS 0.65 x VDDQ VIN TYP 1.8 MAX 1.9 UNITS V 0.35 x V DDQ V 0.35 x V DDQ V V V -0.3 V DDQ + 0.3 V 0.3 V DDQ + 0.4 V 0.6 V DDQ + 0.4 V VOX VDDQ/2 - 0.10 V DDQ/2 + 0.10 V VIX VDDQ/2 - 0.15 VDD/2 V DDQ2 + 0.15 V VID DC - CLK_INT, CLK_INC, FB_INC, FB_INT AC - CLK_INT, CLK_INC, FB_INC, FB_INT IOH IOL TA 0 Notes: 1. Unused inputs must be held high or low to prevent them from floating. 2. DC input signal voltage specifies the allowable DC execution of differential input. 3. Differential inputs signal voltages specifies the differential voltage [VTR-VCP] required for switching, where VTR is the true input level and VCP is the complementary input level. 4. Differential cross-point voltage is expected to track variations of VDDQ and is the voltage at which the differential signal must be crossing. 0981C—04/05/05 5 -9 9 mA mA 70 °C ICS97ULP877B Timing Requirements T A = 0 - 70°C Supply Voltage AVDD, VDDQ = 1.8 V + /- 0.1V (unless otherwise stated) CONDITIONS PARAMETER SYMBOL MIN MAX UNITS Max clock frequency freqop 1.8V+0.1V @ 25°C 95 410 MHz Application Frequency Range freqApp 1.8V+0.1V @ 25°C 160 410 MHz Input clock duty cycle dtin 40 60 % 15 µs CLK stabilization T STAB NOTE: The PLL must be able to handle spread spectrum induced skew. NOTE: Operating clock frequency indicates a range over which the PLL must be able to lock, but in which it is not required to meet the other timing parameters. (Used for low speed system debug.) NOTE: Application clock frequency indicates a range over which the PLL must meet all timing parameters. NOTE: Stabilization time is the time required for the integrated PLL circuit to obtain phase lock of its feedback signal to its reference signal, within the value specificied by the Static Phase Offset (t(Æ ), after power-up. During normal operation, the stabilization time is also the time required for the integrated PLL circuit to obtain phase lock of its feedback signal to its reference signal when CK and CK go to a logic low state, enter the power-down mode and later return to active operation. CK and CK may be left floating after they have been driven low for one complete clock cycle. 0981C—04/05/05 6 ICS97ULP877B Switching Characteristics1 TA = 0 - 70°C Supply Voltage AVDD, VDDQ = 1.8 V +/- 0.1V (unless otherwise stated) PARAMETER CONDITION (MHz) SYMBOL ten Output enable time OE to any output 160 to 410 tdis OE to any output Output disable time 160 to 270 tjit (per) Period jitter 271 to 410 160 to 270 tjit(hper) Half-period jitter 271 to 410 Input Clock Input slew rate SLr1(i) Output Enable (OE), (OS) Output clock slew rate 160 to 410 SLr1(o) tjit(cc+) Cycle-to-cycle period jitter tjit(cc-) 160 to 270 t(Ø)dyn Dynamic Phase Offset 271 to 410 2 Static Phase Offset 271 to 410 tSPO ∑(su) t jit (per) + t (Ø)dyn + t skew(o) t(Ø)dyn + tskew(o) ∑t (h) 160 to 270 tskew Output to Output Skew 271 to 410 SSC modulation frequency SSC clock input frequency deviation PLL Loop bandwidth (-3 dB from unity gain) Notes: 1. Switching characteristics guaranteed for application frequency range. 2. Static phase offset shifted by design. 0981C—04/05/05 7 MIN 30.00 3 40 -40 50 20 50 80 60 40 30 33 UNITS ns ns ps ps ps ps v/ns v/ns v/ns ps ps ps ps ps ps ps ps ps kHz 0.00 -0.50 % -40 -30 -60 -50 1 0.5 1.5 0 0 -50 -20 -50 2.0 TYP 4.73 5.82 2.5 2.5 0 MAX 8 8 40 30 60 50 4 MHz ICS97ULP877B Parameter Measurement Information VDD V(CLKC) V(CLKC) ICS97ULP877B GND Figure 1. IBIS Model Output Load VDD/2 C = 10 pF - GND ICS97ULP877B R = 10Ω Z = 60Ω SCOPE Z = 50Ω Z = 2.97" R = 1MΩ V(TT) C = 1 pF Z = 120Ω R = 10Ω Z = 60Ω Z = 50Ω Z = 2.97" R = 1MΩ V(TT) C = 1 pF C = 10 pF Note: VTT = GND GND -VDD/2 Figure 2. Output Load Test Circuit YX, FB_OUTC YX, FB_OUTT tc(n) tc(n+1) tjit(cc) = tc(n) ± tc(n+1) Figure 3. Cycle-to-Cycle Jitter 0981C—04/05/05 8 ICS97ULP877B Parameter Measurement Information CLK_INC CLK_INT FB_INC FB_INT t( ) n n=N t( ) n 1 t( )= N (N is a large number of samples) Figure 4. Static Phase Offset YX# YX YX, FB_OUTC YX, FB_OUTT t(skew) Figure 5. Output Skew YX, FB_OUTC YX, FB_OUTT tC(n) YX, FB_OUTC YX, FB_OUTT 1 fO t(jit_per) = tc(n) - 1 fO Figure 6. Period Jitter 0981C—04/05/05 9 t ( ) n+1 ICS97ULP877B Parameter Measurement Information YX, FB_OUTC YX, FB_OUTT t jit(hper_n+1) t jit(hper_n) 1 fo tjit(hper) = t jit(hper_n) - 1 2xfO Figure 7. Half-Period Jitter 80% 80% VID, VOD Clock Inputs and Outputs 20% 20% tslr tslf Figure 8. Input and Output Slew Rates 0981C—04/05/05 10 ICS97ULP877B CK CK FBIN FBIN t( t( ) SSC OFF SSC ON t( ) SSC OFF SSC ON t( )dyn t( )dyn t( )dyn Figure 9. Dynamic Phase Offset 50% VDDQ OE t en Y 50% VDDQ Y Y/ Y OE 50% VDDQ t dis Y 50 % VDDQ Y Figure 10. Time delay between OE and Clock Output (Y, Y) 0981C—04/05/05 11 )dyn ICS97ULP877B Figure 11. AVDD Filtering - Place the 2200pF capacitor close to the PLL. - Use a wide trace for the PLL analog power & ground. Connect PLL & caps to AGND trace & connect trace to one GND via (farthest from PLL). - Recommended bead: Fair-Rite P/N 2506036017Y0 or equivalent (0.8 Ohm DC max, 600 Ohms @ 100 MHz). 0981C—04/05/05 12 ICS97ULP877B C Seating Plane A1 Numeric Designations for Horizontal Grid b REF T 4 3 2 1 A B C D Alpha Designations for Vertical Grid (Letters I, O, Q & S not used) D d TYP D1 - e - TYP TOP VIEW E c REF h TYP - e - TYP E1 0.12 C ALL DIMENSIONS IN MILLIMETERS D E 7.00 Bsc 4.50 Bsc T Min/Max 0.86/1.00 ----- BALL GRID ----HORIZ VERT e 0.65 Bsc 6 10 Max. TOTAL 60 d Min/Max 0.35/0.45 h Min/Max 0.15/0.21 D1 E1 5.85 Bsc 3.25 Bsc Note: Ball grid total indicates maximum ball count for package. Lesser quantity may be used. * Source Ref.: JEDEC Publication 95, MO-205*, MO-225** 10-0055 Ordering Information ICS97ULP877BHLF-T Example: ICS XXXX y H LF- T Designation for tape and reel packaging Annealed Lead Free (Optional) Package Type H = BGA Revision Designator (will not correlate with datasheet revision) Device Type Prefix ICS = Standard Device 0981C—04/05/05 13 REF. DIMENSIONS b c 0.575 0.625 ** ICS97ULP877B (Ref.) Seating Plane (N D -1)x e (Ref.) A1 Index Area ND & NE Even A3 N L N 1 Anvil Singulation 1 2 Top View (NE -1)x e (Ref.) E2 2 Sawn Singulation b (Ref.) A D are Even 2 E2 or E (Typ.) e 2 If N & N D E e ND & NE Odd D2 2 Thermal Base D2 0.08 C C THERMALLY ENHANCED, VERY THIN, FINE PITCH QUAD FLAT / NO LEAD PLASTIC PACKAGE ALL D IMENSIONS IN MILLIMETERS N ND NE D x E BASIC D2 M IN. / MAX. E2 M IN. / MAX. L MIN. / MAX. 40 10 10 6.00 x 6.00 2.75 / 3.05 2.75 / 3.05 0.30 / 0.50 SY MBOL A A1 A3 b e MIN. M AX. 0.80 1.00 0 0.05 0.25 Reference 0.18 0.30 0.50 BASIC Source R eference: MLF2™SE 10-0053 Ordering Information ICS97ULP877BKLF-T Example: ICS XXXX y K LF- T Designation for tape and reel packaging Annealed Lead Free (Optional) Package Type K = MLF Revision Designator (will not correlate with datasheet revision) Device Type Prefix ICS = Standard Device 0981C—04/05/05 14 IMPORTANT NOTICE AND DISCLAIMER RENESAS ELECTRONICS CORPORATION AND ITS SUBSIDIARIES (“RENESAS”) PROVIDES TECHNICAL SPECIFICATIONS AND RELIABILITY DATA (INCLUDING DATASHEETS), DESIGN RESOURCES (INCLUDING REFERENCE DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS” AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS. 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