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HD49334AF Datasheet

CDS/PGA & 10-bit A/D Converter

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HD49334AF/AHF
CDS/PGA & 10-bit A/D Converter
REJ03F0105-0100Z
Rev.1.0
Apr 20, 2004
Description
The HD49334AF/AHF is a CMOS IC that provides CDS-PGA analog processing (CDS/PGA) suitable for CCD camera
digital signal processing systems together with a 10-bit A/D converter in a single chip.
Functions
Correlated double sampling
PGA
Offset compensation
Serial interface control
10-bit ADC
Operates using only the 3 V voltage
Corresponds to switching mode of power dissipation and operating frequency
Power dissipation: 120 mW (Typ), maximum frequency: 36 MHz (HD49334AHF)
Power dissipation: 60 mW (Typ), maximum frequency: 25 MHz (HD49334AF)
ADC direct input mode
QFP 48-pin package
Features
Suppresses low-frequency noise output from CCD by the S/H type correlated double sampling.
The S/H response frequency characteristics for the reference level can be adjusted using values of external parts and
registers.
High sensitivity is achieved due to the high S/N ratio and a wide coverage provided by a PG amplifier.
Feedback is used to compensate and reduce the DC offsets including the output DC offset due to PGA gain change
and the CCD offset in the CDS (correlated double sampling) amplifier input.
PGA, standby mode, etc., is achieved via a serial interface.
High precision is provided by a 10-bit-resolution A/D converter.
Rev.1.0, Apr 20, 2004, page 1 of 22


Renesas Electronics Components Datasheet

HD49334AF Datasheet

CDS/PGA & 10-bit A/D Converter

No Preview Available !

HD49334AF/AHF
Pin Arrangement
VRM
VRT
VRB
NC
DVSS
OEB
DVDD
DVDD
DVSS
CS
SDATA
SCK
36 35 34 33 32 31 30 29 28 27 26 25
37 24
38 23
39 22
40 21
41 20
42 19
43 18
44 17
45 16
46 15
47 14
48 13
1 2 3 4 5 6 7 8 9 10 11 12
NC
NC
SPSIG
SPBLK
OBP
PBLK
DVDD
DVDD
ADCLK
DVSS
DVSS
DRDVDD
(Top view)
Pin Description
Pin No.
1
2 to 11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Symbol
NC
D0 to D9
NC
DRDVDD
DVSS
DVSS
ADCLK
DVDD
DVDD
PBLK
OBP
SPBLK
SPSIG
NC
NC
AVSS
AVSS
AVDD
BLKSH
BLKFB
CDSIN
BLKC
Description
No connection pin
Digital output
No connection pin
Output buffer power supply (3 V)
Digital ground (0 V)
Digital ground (0 V)
ADC conversion clock input pin
Digital power supply (3 V)
Digital power supply (3 V)
Preblanking input pin
Optical black pulse input pin
Black level sampling clock input pin
Signal level sampling clock input pin
No connection pin
No connection pin
Analog ground (0 V)
Analog ground (0 V)
Analog power supply (3 V)
Black level S/H pin
Black level FB pin
CDS input pin
Black level C pin
Rev.1.0, Apr 20, 2004, page 2 of 22
Analog(A) or
I/O Digital(D)
——
OD
——
—D
—D
—D
ID
—D
—D
ID
ID
ID
ID
——
——
—A
—A
—A
—A
—A
IA
—A


Part Number HD49334AF
Description CDS/PGA & 10-bit A/D Converter
Maker Renesas Technology
Total Page 23 Pages
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