tda8787hl NXP Semiconductors, tda8787hl Datasheet - Page 2

• Manufacturer Part Number: tda8787hl
• Description: 10-bit, 3.0 V Analog-to-digital Interface For Ccd Cameras
• Manufacturer: NXP Semiconductors

Philips Semiconductors
FEATURES
QUICK REFERENCE DATA
ORDERING INFORMATION
1998 Oct 15
V
V
V
I
I
I
ADC
V
f
f
DR
N
P
TDA8787HL
CCA
CCD
CCO
pix(max)
pix(min)
Correlated Double Sampling (CDS), Automatic Gain
Control (AGC), 10-bit Analog-to-Digital Converter (ADC)
and reference regulator included
Fully programmable via a 3-wire serial interface
Sampling frequency up to 18 MHz
AGC gain range of 36 dB (in steps of 0.1 dB)
Low power consumption of only 190 mW (typ.)
Power consumption in standby mode of 4.5 mW (typ.)
3.0 V operation and 2.5 to 3.6 V operation for the digital
outputs
Active control pulses polarity selectable via serial
interface
8-bit DAC included for analog settings
TTL compatible inputs, CMOS compatible outputs.
CCA
CCD
CCO
i(CDS)(p-p)
tot
tot(rms)
NUMBER
10-bit, 3.0 V analog-to-digital interface for
CCD cameras
SYMBOL
AGC
TYPE
res
analog supply voltage
digital supply voltage
digital outputs supply voltage
analog supply current
digital supply current
digital outputs supply current
ADC resolution
maximum CDS input voltage
(peak-to-peak value)
maximum pixel rate
minimum pixel rate
AGC dynamic range
total noise from CDS input to
ADC output
total power consumption
LQFP48
NAME
PARAMETER
plastic low profile quad flat package; 48 leads; body 7
all clamps active
f
input ramp response time is 800 s
V
V
AGC gain = 0 dB; see Fig.8
V
pix
CC
CC
CCA
= 18 MHz; C
= 2.85 V
= V
3.0 V
CCD
2
DESCRIPTION
CONDITIONS
APPLICATIONS
GENERAL DESCRIPTION
The TDA8787 is a 10-bit analog-to-digital interface for
CCD cameras. The device includes a correlated double
sampling circuit, AGC and a low-power 10-bit ADC
together with its reference voltage regulator.
AGC gain is controlled via the serial interface.
The ADC input clamp level is controlled via the serial
interface.
An additional DAC is provided for additional system
controls; its output voltage range is 1.0 V (p-p) which is
available at pin OFDOUT.
PACKAGE
= V
Low-power, low-voltage CCD camera systems.
L
CCO
= 20 pF;
= 3 V
2.7
2.7
2.5
650
800
18
5
MIN.
7
Preliminary specification
1.4 mm
3.0
3.0
2.6
55
8
1
10
36
0.25
190
TYP.
TDA8787
3.6
3.6
3.6
70
11
2
MAX.
SOT313-2
VERSION
V
V
V
mA
mA
mA
bits
mV
mV
MHz
MHz
dB
LSB
mW
UNIT