參數(shù)資料
型號： BH7760KV
廠商： Rohm CO.,LTD.
英文描述： Analog signal I / O interface for portable audio applications
中文描述： 模擬信號的I / O接口，便攜式音頻應(yīng)用
文件頁數(shù)： 4/7頁
文件大?。?/td> 91K
代理商： BH7760KV
4
Multimedia ICs
BH7760KV
Pin descriptions
Pin No.
Pin name
Function
Pin voltage
Pin type
36, 34
35, 33
37, 38
39
40, 41
42, 43
44
45, 46
47
48
EXT NFB L / R
INT NFB L / R
INT MIC IN L / R
MIC SEL
EXT MIC IN L / R
LINE OUT L / R
MUTE OUT
HP OUT L / R
SP OUT 1
SP OUT 2
MIC amplifier feedback (EXT)
MIC amplifier feedback (INT)
INT MIC input
MIC SEL control input
EXT MIC input
LINE amplifier output
MUTE output
HP amplifier output
BTL speaker output (forward side)
BTL speaker output (reverse side)
2.5V
2.5V
2.5V
5.0V
2.5V
2.5V
—
2.5V
2.5V
2.5V
B (NPN)
B (NPN)
75k
200k
PULL UP
75k
EF (NPN)
C (NPN)
EF (NPN)
EF (NPN)
EF (NPN)
Note: EF: Emitter follower, P-P: Push-pull, B: Base, G: gate.
Electrical characteristics (unless otherwise noted, AV
CC
= SPV
CC
, V
CC
= 5.0V, DV
CC
= 3.0V, Ta = 25°C)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
Circuit current
Circuit current power save
1 B.W. = 400Hz to 30kHz
2 DIN AUDIO
I
CC
I
CCS
6.0
0.8
11.0
1.6
[Circuit current]
[MIC amplifier] INPUT: EXT MIC IN L / R, INT MIC IN L / R OUTPUT: REC OUT L / R
[Line amplifier (during EE)] INPUT: EXT MIC IN L / R, INT MIC IN L / R OUTPUT: LINE OUT L / R
[Line amplifier (during PB)] INPUT: PB IN L / R OUTPUT: LINE OUT L / R
20.0
3.2
mA
mA
No input
No input and during power save
Output voltage level
ALS level
V
OREC
V
ORECALC
– 21.7
– 10.7
– 18.7
– 6.7
– 15.7
– 2.7
dBV
dBV
V
IN
= – 70.0dBV, with MIC amplifier at 30dB
V
IN
= – 50.0dBV, with MIC amplifier at 30dB
Output voltage level
Distortion
Output residual noise
Crosstalk
Maximum output level
V
OLINEEE
THD
LINEEE
V
ONLINEEE
CT
LINEEE
V
OMLINEEE
– 13.0
—
—
—
– 3.0
– 10.0
0.50
– 60.0
– 31.0
2.3
– 7.0
1.50
– 50.0
– 20.0
—
dBV
%
dBV
dBV
dBV
V
IN
= – 70.0dBV, with MIC amplifier at 30dB
V
IN
= – 70.0dBV, with MIC amplifier at 30dB
1
With MIC amplifier at 30dB
2
V
IN
= – 60.0dBV, with MIC amplifier at 30dB
1
THD = 3%,
1
, with ALC OFF
Output voltage level
Distortion
Channel balance
Output residual noise
V
OLINEPB
THD
LINEPB
CB
LINEPB
V
ONLINEPB
– 12.0
—
– 0.5
—
– 10.0
0.017
0.0
– 90.0
– 8.0
0.20
+ 0.5
– 73.0
dBV
%
dB
dBV
V
IN
= – 18.7dBV
V
IN
= – 18.7dBV
1
V
OLINE
L / R difference
2
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