ht82v42 Holtek Semiconductor Inc., ht82v42 Datasheet - Page 2

• Manufacturer Part Number: ht82v42
• Description: Cis Analog Signal Processor
• Manufacturer: Holtek Semiconductor Inc.

Pin Assignment
Pin Description
Note:
Rev. 1.00
AGND
DVDD1
CDSCLK2
RLC/ACYC
DCLK
DGND
SEN
DVDD2
SDI
SCK
OD0~OD2
OD3/SDO
AVDD
VRB
VRT
VRX
VRLC/VBIAS
VIN
Pin Name
AI=Analog Input; AO=Analog Output; AIO=Analog Inout
DI=Digital Input; DO=Digital Output; P=Power
DO
AO Reference Decoupling, this pin must be connected to AGND via a decoupling capacitor.
AO Reference Decoupling, this pin must be connected to AGND via a decoupling capacitor.
AO Reference Decoupling, this pin must be connected to AGND via a decoupling capacitor.
AO
I/O
DI
DI
DI
DI
DI
DI
AI
P
P
P
P
P
Digital Driver Power (3.3V).
Negative power supply for analog circuit
CDS Video Sample Clock Pulse Input
ACYC auto cycles between R, G, B inputs.
ADC Clock. This clock is applied at N times the input pixel rate (N = 2, 3, 6, 8 or any multiple
of 2 thereafter depending on input sample mode).
Digital Driver Ground
Serial Interface Enable Pulse (High Active)
Digital Driver Power(3.3V).
Serial Data Input
Clock Input for Serial Interface
Digital multiplexed output data bus.
ADC output data D[15:0] is available in two multiplexed formats as shown.
When register bit OEB = 0, address bit4 = 1 and SEN has been pulsed high, this pin use as
SDO for register data read-back. Otherwise, this pin use as Digital Data Output.
Analog Supply (3.3V).
Selectable analog output voltage for RLC or single-ended bias reference. This pin would
typically be connected to AGND via a decoupling capacitor. VRLC can be externally driven
if programmed Hi-z.
Analog Input
D12
D13
D14
D15
A
D10
D11
D8
D9
B
2
Description
D4
D5
D6
D7
C
D0
D1
D2
D3
D
November 20, 2009
HT82V42