TLC976C
10-BIT, 20 MSPS, AREA CCD SIGNAL PROCESSOR
SLAS193 – OCTOBER 1998
DGG PACKAGE
(TOP VIEW)
Correlated Double Sampling (CDS), AGC
and High Speed 10-Bit ADC in a Single
Package
SHV
GND1
SHR
1
56
55
54
53
52
51
50
49
48
47
46
5-V Analog Power Supply and 3.3-V Digital
Power Supply
VCC1
2
BLK-PULSE
OFFSET
VCC3
CLP2
3
Power Down Mode
DATA-IN
PIN
4
5
56-Pin TSSOP (DGG) Package with
Multichip Module Assembly for Isolation
DRIVE-OUT
GND3
AGCGAIN
OBCLP
AGCCLP
SH-PULSE
GND2
6
7
CDS-STBY
VRB-OUT
VRT-OUT
A-SUB
8
CDS/AGC
9
AGC Gain Range of 5 dB to 39 dB
Black Level Clamp Circuit
10
11
VCC2
Direct Connection to ADC Input
Voltage Reference for ADC
D-SUB 12
DVSS 13
D0 14
45 A-SUB
44 DVDD
43 AVSS
15
16
17
18
19
20
21
22
23
24
25
26
27
28
42
41
40
39
38
37
36
35
34
33
32
31
30
29
D1
D2
AVSS
VIN
Analog-to-Digital Converter
10-Bit Resolution
D3
D-SUB
AVSS
VRB-IN
VRB-IN
VRT-IN
VRT-IN
AVSS
AVDD
AVDD
AD-STBY
OE
Maximum Conversion Rate . . . 20 MSPS
(MIN)
D4
DVSS
DVDD
D5
Differential Nonlinearity . . . 0.75 LSB (TYP)
Analog Input Voltage Range of 2 Vp-p
3.3 V CMOS Digital Interface
D6
D7
D8
Applications
D9
PC Camera
RESET
DVSS
AVDD
Digital Camera
Camcorder
CLK
CCD Scanner
description
The TLC976 is a multichip module (MCM) subsystem designed for interfacing Charge-Coupled Device (CCD)
in camcorder and digital camera systems. The TLC976 includes correlated double sampler (CDS), automatic
gain control (AGC), black level clamp circuit, 10 bit, 20 MSPS analog-to-digital converter (ADC), and internal
reference voltage generator for ADC.
The CDS/AGC can be connected directly to the ADC input or a separate signal can be connected directly to
the ADC input. A power-down mode is provided.
Assembled using the MCM process, the TLC976 provides isolation between the noisy digital domain and the
noise sensitive analog signals. The CDS/PGA, black level clamps are on one die and the ADC is on a separate
die. The separate dies significantly reduce the substrate noise to the analog section.
The TLC976 comes in a 56-pin TSSOP package with 0,50 mm pin pitch. This is about 25% smaller than using
two separate 32-pin quad flat packs (QFP).
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright 1998, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265