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參數(shù)資料
| 型號(hào)： | BH7273KV |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | Equalizer and ATF circuit IC for Digital VCRs |
| 中文描述： | 均衡器和ATF電路數(shù)字錄像機(jī)集成電路 |
| 文件頁(yè)數(shù)： | 3/13頁(yè) |
| 文件大小： | 169K |
| 代理商： | BH7273KV |
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3
Video ICs
BH7273KV
Electrical characteristics (unless otherwise noted, Ta = 25°C, V
CC
= 4.9V, f = 4.0MHz)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
Voltage gain
Frequency characteristics
VCA
TVF AMP
Voltage gain
Voltage gain
Frequency characteristics
G
VA
G
VA
– 3.0
– 3.0
±
0.0
±
0.0
+ 3.0
dB
dB
Input at pin 4 = 300mV
P-P
Measure output at pin 10
f = 8.0 / 1.0MHz, V
IN
= 300mV
P-P
Output level difference for pin 10
G
VV1
G
VV2
G
VV
– 1.0
—
– 3.0
– 28.0
—
—
dB
dB
dB
Input at pin 12 = 150mV
P-P
, pin 13 = 3.0V
Measure output at pin 14
Input at pin 12 = 150mV
P-P
, pin 13 = 0.25V
Measure output at pin 14
f = 8.0 / 1.0MHz, V
IN
= 150mV
P-P
Output level difference for pin 14; pin 13 = 3.0V
Voltage gain
Frequency characteristics
G
VT
G
VT
– 3.0
±
0.0
9.9
—
dB
dB
Input at pins 17, 18, 22, and 23 = 150mV
P-P
Measure output at pins 19 and 24
f = 8.0 / 1.0MHz, V
IN
= 150mV
P-P
Output level difference for pins 19 and 24
BUFF AMP
Voltage gain
Frequency characteristics
G
VB
G
VB
– 4.2
– 3.0
– 1.2
±
0.0
—
—
dB
dB
Input at pin 26 = 300mV
P-P
Measure output at pins 27 and 28
f = 8.0 / 1.0MHz, V
IN
= 300mV
P-P
Output level difference for pins 27 and 28
Quiescent current
Quiescent current
[Equalizer block]
All pass filter
Iq
Iq
(S)
—
—
63
16
100
30
mA
mA
No signal
No signal, sleep mode
—
– 12.0
MIX AMP
Voltage gain
Frequency characteristics
[ATF block]
VCA voltage gain 1
VCA voltage gain 2
465.0kHz BPF voltage gain
697.5kHz BPF voltage gain
G
VM
G
VM
5.0
8.0
0.0
11.0
—
dB
dB
ATF OUT output level 1
V
ATF1
1.30
1.50
1.70
V
Input at pins 35 and 36 = 150mV
P-P
Measure output at pins 37 and 38
f = 8.0 / 1.0MHz, V
IN
= 150mV
P-P
Output level difference for pins 37 and 38
G
VF1
G
VF2
G
VB1
G
VB2
11
21
44
44
14
24
48
48
17
27
52
52
dB
dB
dB
dB
ATF OUT output level 2
ATF OUT output level 3
V
ATF2
V
ATF3
1.50
0.60
1.80
0.90
2.10
1.20
V
V
Input at pin 63 = 2.0mV
P-P
, pin 62 = low
Measure output at pin 58, f = 697.5kHz
Input at pin 63 = 2.0mV
P-P
, pin 62 = high
Measure output at pin 58, f = 697.5kHz
Input at pin 63 = 0.3mV
P-P
, pin 62 = high
Measure output at pin 50, f = 465.0kHz
Input at pin 63 = 0.3mV
P-P
, pin 62 = high
Measure output at pin 51, f = 697.5kHz
50pin = 100mV
P-P
51pin = 300mV
P-P
, 41pin = 1.5V
50pin = 500mV
P-P
51pin = 100mV
P-P
, 41pin = 1.5V
No signal
[Logic block]
SLEEP hold voltage
SLEEP hold voltage
VCA gain switch low
VCA gain switch high
V
TH1H
V
TH1L
V
TH62L
V
TH62H
2.0
0.0
0.0
2.0
—
—
—
—
4.9
1.0
1.0
4.9
V
V
V
V
Pin 1 voltage for SLEEP mode
Pin 1 voltage for SLEEP mode
Pin 62 voltage for ATF VCA gain to be low
Pin 62 voltage for ATF VCA gain to be high
– 3.0
±
0.0
2.0
3.9
6.9
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