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PDF CXA1700AR Data sheet ( Hoja de datos )
| Número de pieza | CXA1700AR | |
| Descripción | Luminance and Color Signal Processing for 8mm VCR | |
| Fabricantes | Sony Corporation | |
| Logotipo |  |
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CXA1700AQ/AR
Luminance and Color Signal Processing for 8mm VCR
For the availability of this product, please contact the sales office.
Description
The CXA1700AQ/AR is an IC designed for 8mm
CXA1700AQ
CXA1700AR
VCR Y/C main signal processing for consumer use.
64 pin QFP (Plastic) 64 pin LQFP (Plastic)
Equipped with many built-in filters, the
CXA1700AQ/AR is a one-chip main signal
processing system that greatly reduces the number
of external components.
Features
• Built-in auto-adjusting filters
• Supports simple Hi-8 video.
• Supports camera recording.
• Supports power saving mode.
140mW for composite signal input
250mW for separate signal input
• Supports electronic volume (EVR) control.
• Supports BUS LINE.
• Supports NTSC/PAL.
Function
2-input INPUT SELECT, VIDEO AGC, DDS (Y
signal superimposition), synchronous separation,
75Ω VIDEO OUT DRIVE, Y/C mixing, Y/C
separation comb filter, Y/C cross talk elimination,
playback chroma feedback comb, Y dropout
compensation, Yd playback switching, Y signal H
correlation detection, Y pre-emphasis/de-emphasis,
white/dark clipping, clipping compensation,
MOD/DEMOD, HHS/HHS cancel, ACC, chroma
emphasis/de-emphasis, burst emphasis/de-
emphasis, XO/VXO, APC, AFC, APC ID, AFC ID,
burst ID, ACK, APC compensation, HHK, PI/PS,
frequency conversion system, PB C BPF, REC C
LPF, PB C LPF, CARRIER BPF, 4.1V regulator
Structure
Bipolar silicon monolithic IC
Absolute Maximum Ratings (Ta=25°C)
• Supply voltage VCC 7 V
• Operating temperature Topr –10 to +75 °C
• Storage temperature Tstg –65 to +150 °C
• allowable power dissipation
(when mounted on board)
PD CXA1700AQ 1050 mW
CXA1700AR 1010 mW
Operating Condition
• Supply voltage VCC
4.75
+0.5
–0.25
V
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
—1—
E94X25-TE
1 page  
CXA1700AQ/AR
Pin
Symbol
No.
6 NCTC IN
Pin voltage
DC AC
2.05V (when
—
time constant
connected)
Equivalent circuit
6
150
7 DEMOD
OUT
1.6V
140mVp-p
output during
standard
playback
63
Description
Connects external time
constant for HPF of noise
canceler. (Refer to item 11 on
Description of Operation.)
Input
6
11
VG1
Y signal output that has been
FM demodulated and has
passed though the DEMOD
LPF.
1mA
7
8 REC C
OUT
2.0V
Low-
frequency
conversion
chroma
signal
300mVp-p
output
SAT
9 COMP TC 2.05V (when
time constant
connected)
—
9
10 DEEMPH
IN
2.05 V
(center DC)
180mVp-p
input during
playback
10
200
4k
150
150
5k
2.05V
During recording, a chroma
signal that has been burst
emphasized, chroma
emphasized, and frequency
converted is output. During
8 ACK, the output DC goes to
0V. During recording, if
TEST1 is High the burst
emphasized signal is output.
Connects external time
constant for HPF of the
white/dark clipping
compensation circuit during
playback.
11
VG1
9
Input for de-emphasis circuit
during playback. The signal is
input to the de-emphasis
circuit through the clipping
compensation circuit.
—5—
5 Page 
CXA1700AQ/AR
Pin
Symbol
No.
35 VOUT GND 0V
Pin voltage
DC AC
—
Equivalent circuit
Description
GND for the video out circuit.
38
36 VIDEO
OUT
1.6V
(sync tip
level)
Video
2.0Vp-p
output
37 INV IN
1.5V
Video
1.0Vp-p
input
38 RF/V VCC VCC=4.75V
—
Video out 75Ω driver output.
100
37
Inverted input for V sag
compensation for the video
36
out 75Ω driver.
Video out circuit and RF
system block power supply.
35
39 Y RF OUT 2.1V
Y FM output
63 63
500mVp-p
2.5mA
During recording, FM-
modulated Y signal output.
If mode TEST2 is set High
during recording, the Y signal
39 after white/dark clipping is
output.
40 RF GND 0V
41 Y RF IN
—
—
YFM
200mVp-p
input
150 10p
41
45k
RF block GND.
During playback, inputs Y-RF
signal to FM modulation
circuit.
42 SMEAR
CONT
Control
range:
1.8V to Vcc
—
150
42
During recording, adjustment
for high Luminance Smear
Compensation.
—11—
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet CXA1700AR.PDF ] | |
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