參數(shù)資料
型號(hào)： 935173820518
廠商： NXP SEMICONDUCTORS
元件分類： ADC
英文描述： 2-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP48
封裝： PLASTIC, SOT-313-2, LQFP-48
文件頁數(shù)： 12/28頁
文件大小： 263K
代理商： 935173820518
1996 Feb 01
2
Philips Semiconductors
Product specication
YC 8-bit low-power analog-to-digital
video interface
TDA8758
FEATURES
Two 8-bit ADCs:
– one Luminance or CVBS channel
– one Chrominance channel
Sampling rate up to 32 MHz
Binary or two's complement 3-state TTL outputs for
each channel
Internal reference voltage regulator
TTL-compatible digital inputs and outputs
Power dissipation of 530 mW (typical)
Input selector circuit (five selectable video inputs for
CVBS or YC processing)
Peak white enable input
Clamp and Automatic Gain Control (AGC) functions for
Y/CVBS channel (clamping on code 64 and Peak White
level control at code 255)
Clamp function for C channel (code 128)
No sample-and-hold circuit required.
APPLICATIONS
Video signal decoding
Digital picture processing
Frame grabbing
Multimedia with the Philips Desktop Video chip set (and
especially SAA7196 multistandard decoder and scaler).
GENERAL DESCRIPTION
The TDA8758 is an 8-bit video high-speed low-power
analog-to-digital conversion (ADC) interface for YC and
CVBS signal processing. It converts 1-of-3 CVBS input
signals or 1-of-2 YC input signals into binary or two’s
complement words at a sampling rate of 32 MHz.
All analog signal inputs are digitally clamped and an ADC
interface is provided on the Y/CVBS channel. A fast
precharge on clamp and AGC is provided for start-up.
All digital inputs and outputs are TTL compatible.
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
VCCA
analog supply voltage
4.75
5.0
5.25
V
VCCD
digital supply voltage
4.75
5.0
5.25
V
VCCO
output stages supply voltage
4.75
5.0
5.25
V
ICCA
analog supply current
59
70
mA
ICCD
digital supply current
28
40
mA
ICCO
output supply current
CL =15pF
19
28
mA
ILE
DC integral linearity error
±0.75
±1.5
LSB
DLE
DC differential linearity error
±0.4
±1.0
LSB
EB
effective bits
(from video input to digital outputs)
fclk = 32 MHz;
fi = 4.43 MHz
7.1
bits
fclk(max)
maximum clock frequency
30
32
MHz
B
maximum
3 dB bandwidth
(input preamplier)
full-scale; 0 dB gain
15
MHz
αct
crosstalk between Y and C channels
and each video input
63
55
dB
Ptot
total power dissipation
530
724
mW
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA8758G
LQFP48
plastic low prole quad at package; 48 leads; body 7
× 7 × 1.4 mm
SOT313-2
相關(guān)PDF資料
PDF描述
935173940112 1 CHANNEL, VIDEO AMPLIFIER, PZFM9
935173950112 1 CHANNEL, VIDEO AMPLIFIER, PZFM9
935174080557 AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP44
935175870112 TRIPLE 2-CHANNEL, SGL ENDED MULTIPLEXER, PDIP16
935175860118 TRIPLE 2-CHANNEL, SGL ENDED MULTIPLEXER, PDSO16
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