HD49338F_15 Datasheet, PDF (5/25 Pages) Renesas Technology Corp – CDS/PGA & 12-bit A/D Converter

HD49338F/HF
Pin Description (cont.)
Pin No. Symbol
Description
32
BIAS
33
AVDD
34
Y IN
Internal bias pin
Connect a 33 kΩ resistor between BIAS and AVSS.
Analog power supply (3 V)
Y input pin
35
AVSS
Analog ground (0 V)
36
ADCIN
ADC input pin
37
VRM
Reference voltage pin 1
Connect a 0.1 µF ceramic capacitor between VRM and AVSS.
38
VRT
Reference voltage pin 3
Connect a 0.1 µF ceramic capacitor between VRT and AVSS.
39
VRB
Reference voltage pin 2
Connect a 0.1 µF ceramic capacitor between VRB and AVSS.
40
DVDD
Digital power supply (3 V)
41
DVSS
Digital ground (0 V)
42
OEB *¹
Digital output enable pin
43
DVDD
Digital power supply (3 V)
44
DVDD
Digital power supply (3 V)
45
DVSS
Digital ground (0 V)
46
CS
Serial interface control input pin
47
SDATA
Serial data input pin
48
SCK
Serial clock input pin
Note: 1. With pull-down resistor.
Analog(A) or
I/O Digital(D)
—A
—A
—A
—A
—A
—A
—A
—A
—D
—D
—D
—D
—D
—D
I
D
I
D
I
D
Rev.2.00 May 20, 2005 page 3 of 22