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BA7787FS Datasheet(PDF) 5 Page - Rohm

Part # BA7787FS
Description  Headphone / speaker amplifier for notebook computers
PDF  24 Pages
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Manufacturer  ROHM [Rohm]
Direct Link  http://www.rohm.com
Logo ROHM - Rohm

BA7787FS Datasheet(HTML) 5 Page - Rohm

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Multimedia ICs
BA7786FP-Y / BA7787FS
Parameter
Symbol
Unit
Conditions
Min.
Typ.
Max.
〈Supply current〉
Supply current
Supply current SUSPEND
Output voltage level
Maximum output level
Output residual noise
Interchannel crosstalk
Muting level
Output voltage level
Input threshold level
Output voltage level
Distortion
Maximum output level
Output residual noise
Interchannel crosstalk
LINE MIX OFF level
Output level
〈MUTE CTRL〉 (pin 13)
HP MUTE ON holding voltage
HP MUTE OFF holding voltage
〈HP SUSPEND〉 (pin 12)
HP SUSPEND holding voltage
HP SUSPEND holding voltage
〈SP SUSPEND〉 (pin 13)
HP SUSPEND holding voltage
HP SUSPEND holding voltage
〈MONO / STEREO〉 (pin 15)
MONAURAL holding voltage
STEREO holding voltage
〈LINE MIX ON / OFF〉 (pin 18)
LINE MIX OFF holding voltage
LINE MIX ON holding voltage
EVR variation range
Distortion
Measurement circuit
3.52
4.82
7.64
No input, SP OUT = no load
Fig.1
ICC
mA
175
240
410
No input, VH = VS = H
Fig.1
ICCS
µA
〈HP AMP 1〉 INPUT: LINE IN L / R, OUTPUT: HP OUT L / R
〈HP AMP 2〉 INPUT: SYSTEM BEEP IN, OUTPUT: HP OUT L / R
〈SP AMP 2〉 INPUT: PM BEEP IN, OUTPUT: SP OUT L / R
– 7.4
– 4.0
– 1.5
VIN = – 10.0dBV
VIN = – 10.0dBV∗1
VIN = – 10.0dBV∗2
VE = HP VCC
→VE = ground level differential
Fig.1
VOHP
dBV
—
0.1
1.0
Fig.1
THDHP
%
– 1.6
+ 0.6
—
THD = 1%∗1
Fig.1
VOMHP
dBV
dBV
dBV
dBV
VP-P
VP-P
dBV
70
90
—
Fig.1
GEVR
dB
—
– 80
– 73
Rg = 1k
Ω∗2
VIN = – 7.0dBV∗2
VIN = – 7.0dBV∗2, VM = L
VIN = – 10.0dBV
VIN = – 10.0dBV∗1
VIN = – 12.0dBV∗2
VIN = – 12.0dBV∗2, VL = L
VIN = – 10.0dBV
Fig.1
VONHP
—
– 79
– 70
Fig.1
CTHP
—
– 94
– 83
Fig.1
MTHP
0.22
0.32
0.42
VIN = 5.0VP-P
Fig.1
4.5
—
5.0
Fig.1
VHBH
VOSP
THDSP
VOHB
– 1.4
+ 2.0
+ 4.5
Fig.1
—
0.4
1.5
Fig.1
%
+ 3.5
+ 5.7
—
THD = 1%∗1
Fig.1
VOMSP
dBV
—
– 90
– 80
Rg = 1k
Ω∗2
Fig.1
VONSP
dBV
dBV
dBV
dBV
—
– 78
– 70
Fig.1
CTSP
—
– 78
– 70
Fig.1
VOOFFSP
– 7.4
– 4.0
– 1.5
Fig.1
Fig.1
Fig.1
VOSB
GND
—
0.4
VML
V
4.3
—
VCC
VMH
V
GND
—
0.4
Fig.1
VHL
V
4.3
—
VCC
Fig.1
VHH
V
4.3
—
VCC
Fig.1
VSH
V
GND
—
0.4
Fig.1
VSL
V
4.3
—
VCC
Fig.1
VNH
V
GND
—
0.4
Fig.1
VNL
V
GND
—
0.4
Fig.1
VLL
V
4.3
—
VCC
Fig.1
VLH
V
〈SP AMP 1〉 INPUT: SP IN L / R, OUTPUT: SP OUT L / R
∗1: B.W. = 0.4 ~ 30kHz
∗2: DIN audio mode settings are as follows, unless otherwise noted:
VE = HP VCC (EVR = Max.), VM = H (HP MUTE OFF), VH = L (HP SUSPEND), VS = L (SP SUSPEND), VL = H (LINE MIX ON), VN = H (STEREO)
BA7786FP-Y
•Electrical characteristics (unless otherwise noted, Ta = 25°C, HP VCC = SP VCC = 5.0V, f = 1kHz)



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