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Número de pieza | BH7760KV | |
Descripción | Analog signal I / O interface for portable audio applications | |
Fabricantes | ROHM Semiconductor | |
Logotipo | ||
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No Preview Available ! Multimedia ICs
Analog signal I / O interface for
portable audio applications
BH7760KV
The BH7760KV contains the complete audio I / O analog block on a single-chip IC. Therefore, all necessary func-
tions for a DVC audio analog I / O interface are provided on one chip.
•Applications
Portable audio applications
•Features
1) Contains the input amplifier, wind noise deletion fil-
ter, ALC, 30kHz LPF, line amplifier, stereo head-
phone amplifier, and BTL monaural speaker amplifi-
er required to configure a analog signal I / O inter-
face (audio I / O) all on one chip.
2) With the internal 3-line serial control decoder circuit,
serial control enables the setting of the various
modes for the IC.
•Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Unit
Applied voltage
Power dissipation
VCC
Pd
+ 7.0
900∗
V
mW
Operating temperature
Topr
– 10 ~ + 70
°C
Storage temperature
Tstg
– 55 ~ + 125
∗ Reduced by 9.0mW for each increase in Ta of 1°C over 25°C with the IC unmounted.
∗ When mounted on a 70mm × 70mm × 1.6mm glass epoxy board.
°C
•Recommended operating conditions (Ta = 25°C)
Parameter
Symbol
Power supply voltage (analog system)
Power supply voltage (for SP)
Power supply voltage (digital system)
AVcc
SPVcc
DVcc
᭺ Not designed for radiation resistance.
Limits
+ 4.0 ~ + 6.0
+ 4.0 ~ + 6.0
+ 2.7 ~ + 3.3
Unit
V
V
V
1
1 page Multimedia ICs
BH7760KV
•Electrical characteristics (unless otherwise noted, AVCC = SP, VCC = 5.0V, DVCC = 3.0V, Ta = 25°C)
Parameter
Symbol Min. Typ. Max. Unit
Conditions
[HP amplifier] INPUT: PB IN L / R OUTPUT: HP OUT L / R
Output voltage level
Distortion
Maximum output level
Output residual noise
Crosstalk between channels
Muting level
VOHP
THDHP
VOMHP
VONHP
CTHP
MTHP
– 12.5
—
– 3.0
—
—
—
– 10.0
0.7
– 1.2
– 91.0
– 87.0
– 100.0
– 7.5
2.0
—
– 73.0
– 70.0
– 83.0
dBV
%
dBV
dBV
dBV
dBV
VIN = – 18.7dBV
VIN = – 18.7dBV∗1
THD = 3%∗1
Rg = 1kΩ∗2
VIN = – 8.7dBV∗2
VIN = – 8.7dBV, V7 = H∗2
[MIX OUT] INPUT: PB IN L / R OUTPUT: MIX OUT
Output voltage level
VOMIX – 12.5 – 10.0 – 7.5
dBV VIN = – 18.7dBV
[SP amplifier] INPUT: BEEP IN OUTPUT: SP OUT 1 / 2 (BML)
Output voltage level
Distortion
Maximum output level
Output residual noise
SP off level
VOSP
THDSP
VOMSP
VONSP
VOOFFSP
– 4.5
—
+ 3.0
—
—
– 1.0
0.8
+ 4.8
– 95.0
– 65.0
+ 2.5
2.0
—
– 80.0
– 55.0
dBV
%
dBV
dBV
dBV
VIN = – 10.0dBV
VIN = – 10.0dBV∗1
THD = 10%∗1
Rg = 1kΩ∗2
VIN = – 6.0dBV∗2
[Control mode hold voltage]
〈CS〉
Low mode hold voltage
VH14L
0.0
—
0.5
V
—
High mode hold voltage
VH14H
1.8
— DVCC V
—
〈CLK〉
Low mode hold voltage
VH15L
0.0
—
0.5
V
—
High mode hold voltage
VH15H
1.8
— DVCC V
—
〈DATA IN〉
Low mode hold voltage
VH16L
0.0
—
0.5
V
—
High mode hold voltage
VH16H
1.8
— DVCC V
—
〈SP ON / OFF〉
SP off hold voltage
VH3L
0.0
—
0.5
V
—
SP on hold voltage
VH3H 2.0 — AVCC V
—
〈MUTE control〉
MUTE hold voltage
VH7L
0.0
—
0.5
V
—
MUTE hold voltage
VH7H 2.0 — AVCC V
—
〈FADE control〉
FADE off hold voltage
VH26L
0.0
—
0.5
V
—
FADE on hold voltage
VH26H
2.0
— AVCC V
—
〈MIC SEL〉
EXT hold voltage
VH39L
0.0
—
0.5
V
—
INT hold voltage
VH39H
2.0
— AVCC V
—
∗1 B.W. = 400Hz to 30kHz
∗2 DIN AUDIO
5
5 Page |
Páginas | Total 7 Páginas | |
PDF Descargar | [ Datasheet BH7760KV.PDF ] |
Número de pieza | Descripción | Fabricantes |
BH7760KV | Analog signal I / O interface for portable audio applications | ROHM Semiconductor |
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