VP5311B/VP5511B
5
Pin Name Pin No. Description
PD0-7 39 - 46 8 Bit Pixel Data inputs clocked by PXCK. PD0 is the least significant bit, corresponding to Pin
46. These pins are internally pulled low.
D0-7 3 - 10 8 Bit General Purpose Port input/output. D0 is the least significant bit, corresponding to Pin 3.
These pins are internally pulled low.
PXCK 15 27MHz Pixel Clock input. The VP5311 internally divides PXCK by two to provide the pixel
clock.
CLAMP 17 The CLAMP output signal is synchronised to COMPSYNC output and indicates the position of
the BURST pulse, (lines 10-263 and 273-525 for NTSC; lines 6-310 and 319-623 for PALB,D, G,I,N(Argentina)).
COMPSYNC 18 Composite sync pulse output. This is an active low output signal.
TDO 21 JTAG Data scan output port.
TDI 22 JTAG Data scan input port.
TMS 23 JTAG Scan select input.
TCK 24 JTAG Scan clock input.
SA1 26 Slave address select.
SA2 27 Slave address select.
SCL 28 Standard I
2
C bus serial clock input.
SDA 30 Standard I
2
C bus serial data input/output.
RESET 34 Master reset. This is an asynchronous, active low, input signal and must be asserted for a
minimum 200ns in order to reset the VP5311.
REFSQ 35 Reference square wave input used only during Genlock mode.
VREF 50 Voltage reference output. This output is nominally 1·055V and should be decoupled with a
100nF capacitor to GND.
DAC GAIN 51 DAC full scale current control. A resistor connected between this pin and GND sets the
magnitude of the video output current. An internal loop amplifier controls a reference current
flowing through this resistor so that the voltage across it is equal to the Vref voltage.
COMP 52 DAC compensation. A 100nF ceramic capacitor must be connected between pin 52 and pin
53.
LUMAOUT 54 True luminance, composite and chrominance video signal outputs. These are high
COMPOUT 56 impedance current source outputs. A DC path to GND must exist from each of these pins.
CHROMAOUT 58
NOT USED 60, 61, 64
VDD 1, 12, 16, Positive supply input. All VDD pins must be connected.
20, 29,
32, 33,
37, 48
AVDD 53, 59 Analog positive supply input. All AVDD pins must be connected.
62, 63
GND 2, 11, 13, Negative supply input. All GND pins must be connected.
14, 19,
25, 31,
36, 38, 47
AGND 49, 55, 57 Negative supply input. All AGND pins must be connected.
PIN DESCRIPTIONS
All other pins are N/C and should not be connected.