HI5634 ® ODUCT OBSOLETE PR PLACEMENT RE MMENDED RECO Sheet NOData nter at nical Support Ce contact our Tech www.intersil.com/tsc or 1-888-INTERSIL P RE L I M I N A RY High Performance Programmable Phase-Locked Loop for LCD Applications The HI5634 is a low cost but very high-performance frequency generator for line-locked and genlocked high resolution video applications. Utilizing an advanced low voltage CMOS mixed signal technology, the HI5634 is an effective clock solution for video projectors and displays at resolutions from VGA to beyond UXGA The HI5634 offers pixel clock outputs in both differential (to 250MHz) and single-ended (to 150MHz) formats. Digital phase adjustment circuitry allows user control of the pixel clock phase relative to the recovered sync signal. A second differential output at half the pixel clock rate enables deMUXing of multiplexed A/D converters. The FUNC pin provides either the regenerated input from the phase-locked loop (PLL) divider chain output or a re-synchronized and sharpened input HSYNC. The advanced PLL utilizes either its internal programmable feedback divider or an external divider. The device is programmed by a standard I2C-bus¼® serial interface. • Pixel Clock Frequencies up to 250MHz • Very Low Jitter • Digital Phase Adjustment (DPA) for Clock Outputs • Balanced PECL Differential Outputs • Single-Ended SSTL_3 Clock Outputs • Double-Buffered PLL/DPA Control Registers • Independent Software Reset for PLL/DPA • External or Internal Loop Filter Selection • Uses 3.3V Supply. Inputs are 5V Tolerant. • I2C-bus Serial Interface can Run at Either Low Speed (100kHz) or High Speed (400kHz) • Lock Detection Applications • LCD Monitors and Video Projectors HI5634 (SOIC) TOP VIEW CLK PHASE LOCKED LOOP DIGITAL PHASE ADJUST CLK/2 FUNC Ordering Information HI5634CB Features Pinout OSC PART NUMBER 4745.1 • Frequency Synthesis LOOP FILTER I2C INTERFACE File Number • Genlocking Multiple Video Subsystems Simplified Block Diagram HSYNC July 2000 TEMP. RANGE ( oC) 0 to 70 PACKAGE 24 Ld SOIC PKG. NO. M24.3 VDDD 1 24 IREF VSSD 2 23 CLK/2+ (PECL) SDA 3 22 CLK/2- (PECL) SCL 4 21 CLK+ (PECL) PDEN 5 20 CLK- (PECL) EXTFB 6 19 VSSQ HSYNC 7 18 VDDQ EXTFIL 8 17 CLK (SSTL) EXTFILRET 9 16 CLK/2 (SSTL) VDDA 10 15 FUNC (SSTL) VSSA 11 14 LOCK/REF (SSTL) OSC 12 4-1 13 I2CADR CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2002. All Rights Reserved HI5634 Pin Descriptions PIN NO. PIN NAME TYPE 1 VDDD PWR Digital Supply 2 VSSD PWR Digital Ground 3 SDA IN/OUT Serial Data I2C-Bus (Note 1) 4 SCL IN Serial Clock I2C-Bus (Note 1) 5 PDEN IN PFD Enable Suspends Charge Pump (Note1) 6 EXTFB IN External Feedback In External Divider Input to PFD (Note1) 7 HSYNC IN Horizontal Sync Clock Input to PLL (Note1) 8 EXTFIL IN External Filter External PLL Loop Filter 9 EXTFILRET IN External Filter Return External PLL Loop Filter Return 10 VDDA PWR Analog Supply 3.3V for Analog Circuitry 11 VSSA PWR Analog Ground Ground for Analog Circuitry 12 OSC IN Oscillator Input From Crystal Oscillator Package (Notes 1, 2) 13 I2CADR IN I2C Address Chip I2C Address Select Low = 4Dh Read, 4Ch Write High = 4Fh Read, 4Eh Write 14 LOCK/REF (SSTL) OUT Lock Indicator/Reference Displays PLL or DPA Lock or REF Input 15 FUNC (SSTL) OUT Function Output SSTL_3 Selectable HSYNC Output 16 CLK/2 (SSTL) OUT Pixel Clock/2 Out SSTL_3 Driver to ADC DeMUX Input 17 CLK (SSTL) OUT Pixel Clock Out SSTL_3 Driver to ADC 18 VDDQ PWR Output Driver Supply 3.3V to Output Drivers 19 VSSQ PWR Output Driver Ground Ground for Output Drivers 20 CLK- (PECL) OUT Pixel Clock Out Inverted PECL Driver to ADC. Open Drain Output. 21 CLK+ (PECL) OUT Pixel Clock Out PECL Driver to ADC. Open Drain Output. 22 CLK/2- (PECL) OUT Pixel Clock/2 Out Inverted PECL Driver to ADC DeMUX Input. Open Drain Output. 23 CLK/2+ (PECL) OUT Pixel Clock/2 Out PECL Driver to ADC DeMUX Input. Open Drain Output. 24 IREF IN Reference Current Reference Current for PECL Outputs NOTES: 1. These LVTTL inputs are 5V tolerant. 2. Connect to ground if unused. 4-2 DESCRIPTION COMMENTS 3.3V to Digital Sections 4-3 I2CADR (13) SCL (4) SDA (3) EXTFB (6) HSYNC (7) OSC (12) I 2C MUX RESET ON POWER INTERFACE 0 1 FBK_SEL REG 0[4] REF_POL REG 0[2] DIVIDER OSC OSC_DIV REG 7[0-6] DIVIDER FEEDBACK DPA_LOCK REG 12[0] PFD PLL_LOCK REG 1[0-2] REG 12[1] DETECTOR FREQ PHASE/ MUX FUNC_SEL REG 0[5] 0 1 CK2_INV REG 6[5] DPA_RES REG 5[0-1] DPA_OS REG 4[0-5] SCALER OUTPUT + + OUT_SCL REG 6[6-7] PSD REG 1[4-5] BIAS PECL CLK/2 (16) CLK- (20) OE_PCK REG 6[0] CLK+ (21) OE_TCK REG 6[1] CLK (17) IREF (24) PHASE FUNC (15) OE_F REG 6[4] CLK/2- (22) OE_P2 REG 6[2] CLK/2+ (23) DIVIDER SCALER POST VCO XFILRET (9) ADJUST INT FILTER FIL_SEL REG 4[7] SELECT FILTER EXTFIL (8) OE_T2 REG 6[3] PUMP CHARGE EN_PLS REG 0[6] EN_DLS REG 0[7] DIGITAL LOGIC LOCK LOCK/REF (14) FBD1 FBD0 REG 3[0-3] REG 2[0-7] PDEN REG 0[0] IN_SEL REG 7[7] MUX FBK_POL REG 0[3] 0 1 PD_POL REG 0[1] PDEN (5) HI5634 Block Diagram HI5634 Absolute Maximum Ratings Thermal Information VDDA, VDDD, VDDQ (Measured to VSS). . . . . . . . . . . . . . . . . 4.3V Digital Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . VSSD -0.3V to +5.5V Analog Outputs . . . . . . . . . . . . . . . . . . VSSA -0.3V to VDDA +0.3V Digital Pouts. . . . . . . . . . . . . . . . . . . . . VSSQ -0.3V to VDDQ +0.3V ESD Rating Human Body Model (Per MIL-STD-883 Method 3015.7) . . . >2kV Thermal Resistance (Typical, Note 3) θJA (oC/W) SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Maximum Junction Temperature (Plastic Package) . . . . . . . .150oC Maximum Storage Temperature Range . . . . . . . . . -65oC to 150oC Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 260oC (SOIC - Lead Tips Only) Operating Conditions Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to 70oC Voltage Range (VDDA, VDDD, VDDQ to VSS) . . . . . . 3.0V to 3.6V CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. NOTE: 3. θJA is measured with the component mounted on an evaluation PC board in free air. Electrical Specifications Per Operating Conditions Listed Above, Unless Otherwise Specified PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS DC SUPPLY CURRENT Supply Current, Digital IDDD VDDD = 3.6V - - 25 mA Supply Current, Output Drivers IDDQ VDDQ = 3.6V, No Output Drivers Enabled - - 6 mA Supply Current, Analog IDDA VDDA = 3.6V - - 5 mA DIGITAL INPUTS (SDA, SCL, PDEN, EXTFB, HSYNC, OSC, I2CADR) Input High Voltage VIH 2 - 5.5 V Input Low Voltage VIL VSS-0.3 - 0.8 V 0.2 - 0.6 V Input Hysteresis Input High Current IIH VIH = VDD - - ±10 µA Input Low Current IIL VIL = 0 - - ±200 µA Input Capacitance CIN - - 10 pF IOUT = 3mA. VOH = 6.0V Maximum, as Determined by the External Pull-up Resistor. - - 0.4 V - - VDD V 1.0 - - V SDA (IN OUTPUT MODE: SDA IS BIDIRECTIONAL) Output Low Voltage VOL PECL OUTPUTS (CLK+, CLK-, CLK/2+, CLK/2-) Output High Voltage VOH IOUT = 0 Output Low Voltage (Note 4) VOL IOUT = Programmed Value SSTL_3 OUTPUTS (CLK, CLK/2, FUNC, LOCK/REF) Output Resistance RO 1 < VO < 2V - - 80 Ω fHSYNC Reg 7[7] = 0 0.008 - 10 MHz fOSC Reg 7[7] = 1 0.02 - 100 MHz AC INPUT CHARACTERISTICS HSYNC Input Frequency OSC Input Frequency TIMING CHARACTERISTICS (Note 5) REF Output Transition Times tr Rise Time/Fall Time - 2.8/1.8 - ns PECL CLK Output Transition Times tP Rise Time/Fall Time - 1.0/1.2 - ns SSTL CLK Output Transition Times tS Rise Time/Fall Time - 1.6/0.7 - ns FUNC Output Transition Times tF Rise Time/Fall Time - 1.2/1.0 - ns HSYNC to REF Delay t0 11.3 11.5 12 ns REF to PECL Clock Delay t1 -1.0 0.8 2.2 ns 4-4 HI5634 Electrical Specifications Per Operating Conditions Listed Above, Unless Otherwise Specified (Continued) PARAMETER SYMBOL MIN TYP MAX UNITS t2, t3 45 50 55 % t4 0.2 0.75 1.2 ns PECL Clock to FUNC Delay t5 1.5 1.9 2.3 ns PECL Clock to PECL Clock/2 Delay t6 1.0 1.3 1.5 ns PECL Clock to SSTL Clock/2 Delay t7 1.1 1.4 1.8 ns t8, t9 45 50 55 % PECL Clock Duty Cycle PECL Clock to SSTL Clock Delay SSTL Clock Duty Cycle TEST CONDITIONS NOTES: 4. VOL must not fall below the minimum specified level or the IOUT value may not be maintained. 5. Measured at 3.6V 0oC, 135MHz output frequency, PECL Clock lines to 75Ω termination, SSTL Clock lines unterminated, 20pF load. Transition times vary based on termination. See the “Output Timing Diagram” for details. Application Information Overview The HI5634 addresses stringent graphics system line locked and genlocked applications and provides the clock signals required by high-performance video A/D converters. Included are a phase locked loop (PLL) with a 500MHz voltage controlled oscillator (VCO), a digital phase adjustment to provide a user programmed pixel clock delay, the means for deMUXing multiplexed A/D Converters, and both balanced programmable (PECL) and single-ended (SSTL_3) high-speed clock outputs. Phase-Locked Loop The phase-locked loop is optimized for line-locked applications, for which the inputs are horizontal sync signals. A high-performance Schmitt trigger preconditions the HSYNC input, whose pulses can be degraded if they are from a remote source. This preconditioned HSYNC signal is provided as a clean reference signal with a short transition time (in contrast, the signal that a typical PC graphics card provides has a transition time of tens of nanoseconds). A second high frequency input such as a crystal oscillator and a 7-bit programmable divider can be selected. This selection allows the loop to operate from a local source and is also useful for evaluating intrinsic jitter. A 12-bit programmable feedback divider completes the loop. Designers can substitute an external divider. Either the conditioned HSYNC input or the loop output (recovered HSYNC) is available at the FUNC pin, aligned to the edge of the pixel clock. Automatic Power-On-Reset Detection The HI5634 has automatic power-on-reset detection circuitry and it resets itself if the supply voltage drops below threshold values. No external connection to a reset signal is required. 4-5 Digital Phase Adjustment The digital phase adjustment allows addition of a programmable delay to the pixel clock output, relative to the recovered HSYNC signal. The ability to add delays is particularly useful when multiple video sources must be synchronized. A delay of up to one pixel clock period is selectable in the following increments: 1/64 period for pixel clock rates to 40MHz 1/32 period for pixel clock rates to 80MHz 1/16 period for pixel clock rates to 160MHz Output Drivers and Logic Inputs The HI5634 utilizes low voltage TTL (LVTTL) inputs as well as SSTL_3 (EIA/JESD8-8) and low voltage PECL (pseudoECL) outputs, operating at 3.3V supply voltage. The LVTTL inputs are 5V tolerant. The SSTL_3 and differential PECL output drivers drive resistive terminations or transmission lines. At lower clock frequencies, the SSTL_3 outputs can be operated unterminated. I 2C-bus Serial Interface The HI5634 utilizes the industry standard I2C-bus serial interface. The interface uses 12 registers: one write-only, eight read/write, and three read-only. Two HI5634 devices can be addressed, according to the state of the I2 CADR pin. When the pin is low, the read address is 4Dh, and the write address is 4Ch. When the pin is high, the read address is 4Fh, and the write address is 4Eh. The I2C-bus serial interface can run at either low speed (100kHz) or high speed (400kHz) and provides 5V tolerant input. PC Board Layout Use a PC board with at least four layers: one power, one ground, and two signal. No special cutouts are required for power and ground planes. All supply voltages must be supplied from a common source and must ramp up together. Flux and other board surface debris can degrade the performance of the external loop filter. Ensure that the HI5634 area of the board is free of contaminants. HI5634 Specific Layout Guidelines 1. Digital Supply (VDDD) - Bypass pin 1 (VDDD) to pin 2 (VSSD) with 4.7µF and 0.1µF capacitors, located as close as possible to the pins. Traces must be maximally wide and include multiple surface-etched vias to the appropriate plane. 2. External Loop Filter - The use of an external loop filter is strongly recommended in all designs. Locate loop filter components as close to pins 8 and 9 (EXTFIL and EXTFILRET) as possible. Typical loop filter values are 6.8kΩ for the series resistor, 3300pF RF-type capacitor for the series capacitor, and 150pF for the shunt capacitor. 3. Analog PLL Supply (VDDA) - Decouple pin 10 (VDDA) with a series ferrite bead. Bypass the supply end of the bead with 4.7µF and 0.1µF capacitors. Bypass pin 10 to pin 11 (VSSA) with a 0.1µF capacitor. Locate these components as close as possible to the pins. Traces must be maximally wide and have multiple surface-etched vias to the power or ground planes. 4. PECL Current Set Resistor - Locate PECL current set resistor as close as possible to pin 24 (IREF). Bypass pin 24 to ground with a 0.1µF capacitor. 5. PECL Outputs - Implement these outputs as microstrip transmission lines. The trace widths shown are for 75Ω characteristic impedance, presuming 0.067 in. between layers. Locate the optional series “snubbing” resistors as close as possible to the pins. If the termination resistors are included on-board, locate them as close as possible to the load and connect directly to the power and ground planes (these termination resistors are omitted if the load device implements them internally). 6. Output Driver Supply (VDDQ) - Bypass pin 18 (VDDQ) to pin 19 (VSSQ) with 4.7µF and 0.1µF capacitors, located as close as possible to the pins. Traces must be maximally wide and include multiple surface-etched vias to the appropriate plane. 7. SSTL_3 Outputs - SSTL_3 outputs can be used like conventional CMOS rail-to-rail logic or as a terminated transmission line system at higher-output frequencies. With terminated outputs, the considerations of item 5, “PECL Outputs” apply. See JEDEC documents JESD8-A and JESD8-8. VDD VMIN VTH = 1.8V tD SSTL_3 Outputs Unterminated Outputs In the HI5634, unterminated SSTL output pins display exponential transitions similar to those of rectangular pulses presented to RC loads. The 10-90% rise time is typically 1.6ns, and the corresponding fall time is typically 700ps. In turn, this asymmetry contributes to duty cycle asymmetry at higher output frequencies. In the absence of significant load capacitance (which can further increase rise and fall time), this asymmetry is the dominant factor determining high frequency performance of these single-ended outputs. Typically, no termination is required for the LOCK/REF, FUNC, and CLK/2 outputs nor for CLK outputs up to approximately 135MHz. Terminated Outputs SSTL_3 outputs are intended to terminate in low impedances to reduce the effect of external circuit capacitance. Use of transmission line techniques enables use of longer traces between source and driver without increasing ringing due to reflections. Where external capacitance is minimal and substantial voltage swing is required to meet LVTTL VIH and VIL requirements, the intrinsic rise and fall times of HI5634 SSTL outputs are only slightly improved by termination in a low impedance. The HI5634 SSTL output source impedance is typically less than 60Ω. Termination impedance of 100Ω reduces output swing by less than 30% which is more than enough to drive a single load of LVTTL inputs. Power Supply Considerations The HI5634 incorporates special internal power-on-reset circuitry that requires no external reset signal connection. The supply voltage (VDD) must remain within the recommended operating conditions during normal operation. To reset the HI5634, the supply voltage at the part must be reduced below the threshold voltage (VTH) of the power-onreset circuit. The supply voltage must remain below that threshold voltage such that board power conditioning capacitors are drained and the proper reset state is latched. The amount of time (tD) to hold the voltage in a reset state varies with the design. However, a typical value of 10ms should be sufficient. 4-6 VDD HI5634 SSTL_3 OUTPUT 330Ω 150Ω SINGLE LVTTL LOAD HI5634 I 2C Register Map Summary REGISTER NUMBER NAME ACCESS BIT NAME 0h Input Control R/W PDEN 0 1 Phase Detector Enable (0 = External Enable, 1 = Always Enabled) PD_POL 1 0 Phase Detector Enable Polarity (0 = Not Inverted, 1 = Inverted) REF_POL 2 0 External Reference Polarity (0 = Positive Edge, 1 = Negative Edge) FBK_POL 3 0 External Feedback Polarity (0 = Positive Edge, 1 = Negative Edge) FBK_SEL 4 0 External Feedback Select (0 = Internal Feedback, 1 = External) FUNC_SEL 5 0 Function Out Select (0 = Recovered HSYNC, 1 = Input HSYNC) EN_PLS 6 1 Enable PLL Lock/Ref Status Output (0 = Disable, 1 = Enable) EN_DLS 7 0 Enable DPA Lock/Ref Status Output (0 = Disable, 1 = Enable) PFD0-2 0-2 0 Phase Detector Gain Reserved 3 0 Reserved PSD0-1 4-5 0 Post Scaler Divider (0 = ÷2, 1 = ÷4, 2 = ÷8, 3 = ÷16) Reserved 6-7 0 Reserved 1h Loop Control R/W† RESET BIT # VALUE DESCRIPTION 2h FDBK Div 0 R/W† FDB0-7 0-7 FF 3h FDBK Div 1 R/W† FDB8-11 0-3 F PLL Feedback Divider MSBs (Bits 8-11) Reserved 4-7 0 Reserved DPA_OS0-5 0-5 0 Digital Phase Adjustment Offset Reserved 6 0 Reserved FIL_SEL 7 0 Loop Filter Select (0 = External, 1 = Internal) R / W †† DPA_RES0-1 0-1 3 DPA Resolution (0 = 16 Delay Elements, 1 = 32, 2 = Reserved, 3 = 64) METAL_REV 2-7 0 Metal Mask Revision Number OE_PCK 0 0 Output Enable for PECL PCLK Outputs (0 = High Z, 1 = Enabled) OE_TCK 1 0 Output Enable for STTL_3 CLK Output (0 = High Z, 1 = Enabled) OE_P2 2 0 Output Enable for PECL CLK/2 Outputs (0 = High Z, 1 = Enabled) OE_T2 3 0 Output Enable for STTL_3 CLK/2 Output (0 = High Z, 1 = Enabled) OE_F 4 0 Output Enable for STTL_3 FUNC Output (0 = High Z, 1 = Enabled) CK2_INV 5 0 CLK/2 Invert (0 = Not Inverted, 1 = Inverted) OUT_SCL 6-7 0 SSTL Clock Scaler (0 = ÷1, 1 = ÷2, 2 = ÷4, 3 = ÷8) OSC_DIV 0-6 0-6 0 Osc Divider Modulus IN_SEL 7 1 Input Select (0 = HSYNC Input, 1 = Osc Divider) DPA 0-3 x Writing xAh Resets DPA and Loads Working Register 5 PLL 4-7 x Writing 5xh Resets PLL and Loads Working Registers 1-3 4h 5h 6h 7h 8h DPA Offset DPA Control Output Enables OSC_DIV Reset R/W R/W R/W Write PLL Feedback Divider LSBs (Bits 0-7) 10h Chip Ver Read CHIP VER 0-7 17 Chip Version 23 Decimal (17 Hex) 11h Chip Rev Read CHIP REV 0-7 01 Initial Value 01h. Value Increments With Each All Layer Change. 12h RD_REG Read DPA_LOCK 0 N/A DPA Lock Status (0 = Unlocked, 1 = Locked) PLL_LOCK 1 N/A PLL Lock Status (0 = Unlocked, 1 = Locked) Reserved 2-7 0 Reserved † Identifies Double Buffered Registers. Working Registers are Loaded During Software PLL Reset. †† Identifies Double Buffered Registers. Working Registers are Loaded During Software DPA Reset. 4-7 HI5634 Software Programming Flow INITIALIZE REGISTERS 0, 6, 7 CHANGE PLL AND/OR DPA SETTINGS SET DPA OUTPUT DELAY TO 0 NO REG4[0-5] = 0 YES CHANGE PLL FREQ. ? SET INPUT, PFD GAIN, POST SCALER, AND FEEDBACK DIVIDER REGS 0, 1, 2, 3 REG8 = 50h (NOTE 6) PLL SOFTWARE RESET WAIT ~ 1ms PLL NO LOCKED REG12[1] = 1? ? YES SET DPA RESOLUTION REG5 DPA SOFTWARE RESET REG8 = 0Ah (NOTE 7) WAIT ~ 1ms SELECT DESIRED DPA OUTPUT DELAY DONE NOTES: 6. Updates working Registers 1-3. 7. Updates working Resister 5. 4-8 REG4[0-5] HI5634 Detailed Register Description Register: 0h Name: Input Control Access: Read/Write BIT NAME BIT # RESET VALUE DESCRIPTION PDEN 0 1 Phase/Frequency Detector Enable - 0 = External Enable (Phase/Frequency Detector controlled by PDEN (pin 5) only), 1 = Always Enabled (default). PD_POL 1 0 Phase/Frequency Detector Enable Polarity - Used only when (Reg0 [0]=0). 0 = Not inverted (default, PDEN input (pin 5) is active high),1 = Inverted (PDEN input (pin 5) is active low). REF_POL 2 0 Phase/Frequency Detector External Reference Polarity - Edge of input signal on which Phase Detector triggers. 0 = Rising Edge (default), 1 = Falling Edge. FBK_POL 3 0 External Feedback Polarity - Edge of EXTFB (pin 6) signal on which Phase/Frequency Detector triggers when external feedback is used (Reg0 [4]=1). 0 = Positive Edge (default), 1 = Negative Edge. FBK_SEL 4 0 External Feedback Select - 0 = Internal Feedback (default), 1 = External Feedback. FUNC_SEL 5 0 Function Output Select - Selects re-clocked output to FUNC (pin 15). 0 = Recovered HSYNC (default, regenerated HSYNC output), 1 = External HSYNC (Schmitt-trigger conditioned input from HSYNC (pin 7)). EN_PLS 6 1 Outputs PLL Lock Status (Reg12[1]) on LOCK/REF pin. EN_PLS EN_DLS IN_SEL LOCK/REF (14) 0 0 N/A 0 Outputs DPA Lock Status (Reg12[0]) on LOCK/REF pin. Bits 6, 7 enable multiple functions at LOCK/REF output (pin 14), as shown in table at right. 0 1 N/A 1 if DPA Locked, 0 Otherwise 1 0 N/A 1 if PLL Locked, 0 Otherwise 1 1 0 Post Schmitt Trigger HSYNC(7) XOR REF_POL 1 1 1 FOSC ÷ OSC_DIV EN_DLS 7 Register: 1h 0 Name: Loop Control Register BIT NAME BIT # RESET VALUE PFD0-2 0-2 0 Access: Read/Write (Note 8) DESCRIPTION Phase/Frequency Detector Gain. BIT 2 BIT 1 BIT 0 PFD GAIN (µA/2π RAD) 0 0 0 1 0 0 1 2 0 1 0 4 0 1 1 8 1 0 0 16 1 0 1 32 1 1 0 64 1 1 1 128 BIT 5 BIT 4 PSD DIVIDER 0 0 2 (Default) 0 1 4 1 0 8 1 1 16 Reserved 3 0 Reserved PSD0-1 4-5 0 Post-Scaler Divider - Divides the output of the VCO prior to the DPA and Feedback Divider. Reserved 6-7 0 4-9 Reserved HI5634 Register: 2h, 3h Name: Feedback Divider Registers REG # BIT NAME BIT # RESET VALUE 2h FBD0-7 0-7 FF 3h FBD8-11 0-3 F 3h Reserved 4-7 Access: Read/Write (Note 8, 9) DESCRIPTION PLL Feedback Divider LSBs (0-7). When Bit 0 = 0, the total number of pixels is even. When Bit 0 = 1, the total number of pixels is odd. PLL Feedback Divider MSBs (8-11). Reserved REG 3 3 2 1 REG 2 0 7 6 5 4 3 2 1 0 Feedback Divider Modulus = +8 12 ≤ Feedback Divider Modulus ≤ 4103 Register: 4h Name: DPA Offset Register Access: Read/Write BIT NAME BIT # RESET VALUE DESCRIPTION DPA_OS0-5 0-5 0 Digital Phase Adjustment Offset - Selects clock edge offset in discrete steps from zero to one clock period minus one step. Resolution (number of delay elements per clock cycle) is selected by DPA_RES0-1 (Reg 5[0-1]). Note: Offsets equal to or greater than one clock period are neither recommended nor supported. Example: For DPA_RES0-1=01h, the clock can be delayed from 0 to 31 steps. Reserved 6 0 Reserved FIL_SEL 7 0 Selects external loop filter (0) or internal loop filter (1). The use of an external loop filter is strongly recommended for all designs. Register: 5h Name: DPA Control Register BIT NAME BIT # RESET VALUE DPA_RES0-1 0-1 3 METAL_REV 2-7 0 Access: Read/Write (Note 10) DESCRIPTION Digital Phase Adjustment (DPA) Resolution Select. Use of the DPA above 160MHz is not recommended. Metal Mask Revision Number - After power-up, register bits 2-7 must be written with 111111. After this write, a read indicates the metal mask revision, as shown in the table at right. BIT 1 BIT 0 DELAY ELEMENTS 0 0 16 0 1 32 1 0 Reserved 1 1 64 REVISION BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 A 1 1 1 1 1 1 B 0 1 1 1 1 1 C1 1 0 1 1 1 1 C2 0 0 1 1 1 1 D 1 1 0 1 1 1 E 1 1 1 0 1 1 F 1 1 1 1 0 1 G 1 1 1 1 1 0 CLK RANGE (MHz) 48 160 24 12 80 40 NOTES: 8. Double buffered registers. Actual working registers are loaded during software PLL reset. See Register 8h for details. 9. The value that is programmed into these two registers, plus a value of 8, defines the total number of clock periods that the HI5634 generates between HSYNCs. Program these registers with the total number of horizontal pixels per line minus 8. 10. Double buffered register. Actual working registers are loaded during software DPA reset. See Register 8h for details. 4-10 HI5634 Register: 6h Name: Output Enable Register Access: Read/Write BIT NAME BIT # RESET VALUE OE_PCK 0 0 Output Enable for CLK Outputs (PECL) - 0 = High Z (default), 1 = Enabled. OE_TCK 1 0 Output Enable for CLK Output (SSTL_3) - 0 = High Z (default), 1 = Enabled. OE_P2 2 0 Output Enable for CLK/2 Outputs (PECL) - 0 = High Z (default), 1 = Enabled. OE_T2 3 0 Output Enable for CLK/2 Output (SSTL_3) - 0 = High Z (default), 1 = Enabled. OE_F 4 0 Output Enable for FUNC Output (SSTL_3) - 0 = High Z (default), 1 = Enabled. CK2_INV 5 0 CLK/2 Invert - 0 = Not Inverted (default), 1 = Inverted. OUT_SCL 6-7 0 Clock (CLK) Scaler. Register: 7h DESCRIPTION Name: Oscillator Divider Register BIT 7 BIT 6 CLK DIVIDER 0 0 1 0 1 2 1 0 4 1 1 8 Access: Read/Write BIT NAME BIT # RESET VALUE DESCRIPTION OSC_DIV0- 6 0-6 0 Oscillator Divider Modulus - Divides the input from OSC (pin 12) by the set modulus. The modulus equals the programmed value, plus 2. Therefore, the modulus range is from 3 to 129. IN_SEL 7 1 Input Select - Selects the input to the Phase/Frequency Detector 0 = HSYNC, 1 = Osc Divider (default). Register: 8h Name: Reset Register BIT NAME BIT # RESET VALUE DPA Reset 0-3 X PLL Reset 4-7 Register: 10h X DESCRIPTION Writing XAh to this register resets DPA working Register 5. VALUE RESETS XA DPA Writing 5Xh to this register resets PLL working Registers 1-3. 5X PLL 5A DPA and PLL Name: Chip Version Register BIT NAME BIT # RESET VALUE CHIP VER 0-7 17 Register: 11h BIT # RESET VALUE CHIP REV 0-7 01+ Register: 12h Access: Read Only DESCRIPTION Chip Version 23 (17h). Name: Chip Revision Register BIT NAME Access: Write Only Access: Read Only DESCRIPTION Initial value 01h. +Value increments with each all-layer change. Name: Status Register Access: Read Only BIT NAME BIT # RESET VALUE DPA_LOCK 0 N/A DPA Lock Status (Refer to Register 0h, bits 6 and 7). 0 = Unlocked, 1 = Locked. PLL_LOCK 1 N/A PLL Lock Status (Refer to Register 0h, bits 6 and 7). 0 = Unlocked, 1 = Locked. Reserved 2-7 0 4-11 DESCRIPTION Reserved HI5634 I 2C Data Format (Notes 11-14) RANDOM REGISTER WRITE PROCEDURE S 0 1 0 0 1 1 X W A 7 Bit Address A A P Register Address Data RANDOM REGISTER READ PROCEDURE S 0 1 0 0 1 1 X W A 7 Bit Address A S 0 1 0 0 1 1 X RA Register Address 7 Bit Address A P Data SEQUENTIAL REGISTER WRITE PROCEDURE S 0 1 0 0 1 1 X W A 7 Bit Address A A Register Address Data A A P Data SEQUENTIAL REGISTER READ PROCEDURE S 0 1 0 0 1 1 X W A 7 Bit Address Direction: A S 0 1 0 0 1 1 X RA Register Address = Bus Host to Device 7 Bit Address A A P Data Data = Device to Bus Host NOTES: 11. All values are transmitted with the most significant bit first and the least significant bit last. 12. The value of the X-bit equals the logic state of pin 13 (I2CADR). 13. R = Read Command = 1, W = Write Command = 0. 14. S = Start Condition, A = Acknowledge, A = No Acknowledge, P = Stop Condition. See “I2C Data Characteristics” for description. I 2C Data Characteristics SDA SCL DATA LINE STABLE: DATA VALID CHANGE OF DATA ALLOWED BIT TRANSFER ON THE I2C BUS SDA SCL P S START CONDITION STOP CONDITION START AND STOP CONDITIONS DATA OUTPUT BY TRANSMITTER DATA OUTPUT BY RECEIVER S SCL FROM MASTER START CONDITION 1 2 ACKNOWLEDGE ON THE I2C BUS 7 8 9 CLOCK PULSE FOR ACKNOWLEDGMENT NOTE: These waveforms are from “The I2C bus and how to use it,” published by Philips Semiconductor. The document can be obtained from: http://www-us2.semiconductors.philips.com/acrobat/various/i2c_bus_specification_1995.pdf. 4-12 4-13 † Timing when Register 2[0] = 0 (Total Number of Pixels is Even). †† Timing when Register 2[0] = 1 (Total Number of Pixels is Odd). SSTL CLK/2 PECL CLK+ PECL CLK- ODD TOTAL PIXELS †† SSTL CLK/2 PECL CLK/2- PECL CLK/2+ EVEN TOTAL PIXELS† FUNC SSTL CLK PECL CLK+ PECL CLK- REF HSYNC AC Timing Characteristics Overview HI5634 HI5634 Output Timing Diagram t0 HSYNC REF tR t2 t1 PECL CLK- tP t3 PECL CLK+ SSTL CLK tS t4 tF FUNC t5 EVEN TOTAL PIXELS † PECL CLK/2+ t6 PECL CLK/2SSTL CLK/2 t7 †Timing when Register 2[0] = 0 (Total Number of Pixels is Even). 4-14 t8 t9 HI5634 Typical Performance Curves 20 FREQUENCY (SLOW: 3.0V AT 70oC) FREQUENCY (NOMINAL: 3.3V AT 30 oC) 600 FREQUENCY (FAST: 3.6V AT 0 oC) JITTER (3.0V AT 70oC) 500 JITTER (3.3V AT 30oC) JITTER (3.6V AT 0oC) DPA_RES 0-1 = 00h 50MHz - SVGA AT 72Hz 157.5MHz - SXGA AT 85Hz 18 400 300 200 DELAY RANGE (ns) 16 JITTER (ps) VCO FREQUENCY (MHz) 700 14 12 10 8 6 4 100 0 100 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 VCO VOLTAGE (V) 0 0 FIGURE 1. VCO FREQUENCY AND JITTER vs VCO VOLTAGE 45 2 90 70 DELAY RANGE (ns) DELAY RANGE (ns) 16 DPA_RES 0-1 = 03h 12.27MHz - NTSC 39.8MHz - SVGA AT 60Hz 80 35 30 25 20 15 60 50 40 30 10 20 5 10 0 4 8 12 DPA OFFSET SETTING (# OF STEPS) FIGURE 2. DPA DELAY vs OFFSET SETTING (16 ELEMENTS) DPA_RES 0-1 = 01h 25.175MHz - VGA AT 60Hz 78.75MHz - XGA AT 75Hz 40 0 0 4 8 12 16 20 24 DPA OFFSET SETTING (# OF STEPS) 28 32 FIGURE 3. DPA DELAY vs OFFSET SETTING (32 ELEMENTS) 4-15 0 0 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 DPA OFFSET SETTING (# OF STEPS) FIGURE 4. DPA DELAY vs OFFSET SETTING (64 ELEMENTS) HI5634 Small Outline Plastic Packages (SOIC) M24.3 (JEDEC MS-013-AD ISSUE C) N INDEX AREA 24 LEAD WIDE BODY SMALL OUTLINE PLASTIC PACKAGE 0.25(0.010) M H B M INCHES E -B- 1 2 3 L SEATING PLANE -A- h x 45o A D -C- e A1 B 0.25(0.010) M C 0.10(0.004) C A M SYMBOL MIN MAX MIN MAX NOTES A 0.0926 0.1043 2.35 2.65 - A1 0.0040 0.0118 0.10 0.30 - B 0.013 0.020 0.33 0.51 9 C 0.0091 0.0125 0.23 0.32 - D 0.5985 0.6141 15.20 15.60 3 E 0.2914 0.2992 7.40 7.60 4 e µα B S 1. Symbols are defined in the “MO Series Symbol List” in Section 2.2 of Publication Number 95. 2. Dimensioning and tolerancing per ANSI Y14.5M-1982. 3. Dimension “D” does not include mold flash, protrusions or gate burrs. Mold flash, protrusion and gate burrs shall not exceed 0.15mm (0.006 inch) per side. 4. Dimension “E” does not include interlead flash or protrusions. Interlead flash and protrusions shall not exceed 0.25mm (0.010 inch) per side. 5. The chamfer on the body is optional. If it is not present, a visual index feature must be located within the crosshatched area. 6. “L” is the length of terminal for soldering to a substrate. 7. “N” is the number of terminal positions. 8. Terminal numbers are shown for reference only. 9. The lead width “B”, as measured 0.36mm (0.014 inch) or greater above the seating plane, shall not exceed a maximum value of 0.61mm (0.024 inch) 10. Controlling dimension: MILLIMETER. Converted inch dimensions are not necessarily exact. 4-16 0.05 BSC 1.27 BSC - H 0.394 0.419 10.00 10.65 - h 0.010 0.029 0.25 0.75 5 L 0.016 0.050 0.40 1.27 6 N α NOTES: MILLIMETERS 24 0o 24 8o 0o 7 8o Rev. 0 12/93