BH3874AKS2 Ver la hoja de datos (PDF) - ROHM Semiconductor
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BH3874AKS2 Datasheet PDF : 25 Pages
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Audio ICs
BH3874AKS2
!Electrical characteristics
(Unless otherwise noted, Ta=25°C, VCC=9V, f=1kHz, Rg=600Ω, RL=10kΩ, VIN=300mVrms, INPUT SELECTOR=Ach,
MODE SELECTOR=Through, VOLUME=0dB, SURROUND=0dB, GRAPHIC EQUALIZER=0dB,
DYNAMIC BASS=0dB, SPECTRUM ANALYZER=RESET)
Parameter
Circuit current
Symbol Min. Typ. Max. Unit
Conditions
Input
pin
Measure-
ment
pin
[1]
[2]
[3]
Data setting
[4] [4] [5] [5]
[6]
[7]
[8]
Switch control table
SW SW SW SW SW
1/4 2/5 3/6 7 8
IQ
− 40 60 mA No signal, after power on. −
30
−−−−−−−−−− 1 1 1 2 1
Maximum input voltage
VIM 0.4 0.7 − Vrms THD=1%
41
42
32
31
00 05 03 04 0C 02 0A 06 81 07 1 1 1 2 1
Maximum output voltage VOM 2.0 2.5 − Vrms THD=1%
41
42
32
31
00 05 03 04 0C 02 0A 06 81 07 1 1 1 2 1
Voltage gain
GV
9 11 13 dB
41
42
Total harmonic distortion
rate
THD
− 0.01 0.05
%
VIN=150mVrms,
400Hz−30kHz BPF
41
42
Output noise voltage ∗ VNO
−
35
50 µVrms Biamp=0dB, DIN AUDIO
41
42
Residual output noise ∗
voltage
VMNO
−
5
20
µVrms
Rg=0Ω, Volume=−∞,
Biamp=0dB, DIN AUDIO
41
42
Cross talk
∗
CT
70 80 −
dB
Biamp=0dB, Rg=0Ω,
DIN AUDIO
41
42
32
31
00 05 03 04 0C 02 0A 06 81 07 1 1 1 2 1
32
31
00 05 03 04 0C 02 0A 06 81 07 1 1 1 2 1
32
31
00 15 03 04 0C 02 0A 06 89 07 1 2 − 2 1
32
31
00 15 03 04 0C 02 0A 06 89 07 1 2 − 2 1
31
32
00 15 03 04 0C 02 0A 06 81 07 1/1 1/2 1/− 2 1
Channel balance
CB −1.5 0 1.5 dB Lch reference
−
−
−−−−−−−−−− − − − − −
Selector A-C
Input impedance
RIN 35 50 65 kΩ
41
41
1
42
42
1
43
44
43
44
−−−−−−−−−−
2
2
1
2
2
1
45
45
3
46
46
3
Selector D
Input impedance
RIND 10 20 30
Maximum attenuation ∗ ATTMAX 86 95 −
kΩ
dB DIN AUDIO
47
48
47
48
−
−
−
−
−
−
−
−
−
−
4
4
1
2
2
1
41
42
32
31
F8 05 03 04 0C 02 0A 06 81 07 1 1 1 2 1
Vocal fade suppression
quantity
GVF 25 30 −
dB
41,42 32
41,42 31
00 25 03 04 0C 02 0A 06 81 07 1 1 1 2 1
Graphic equalizer boost
VIN=100mVrms
gain set error
VGQBL −2 0
2
dB fIN=100Hz, 300Hz, 1kHz,
(Set 2dB,4dB,6dB)
3kHz, or 10kHz
41
Graphic equalizer boost
VIN=100mVrms
42
gain set error
VGQBH −3 0
3
dB fIN=100Hz, 300Hz, 1kHz,
(Set 8dB,10dB,12dB)
3kHz, or 10kHz
74 0C 02 0A 06
32
31
04 7C 02 0A 06
00 05 03 04 0C 72 0A 06 81 07 1 1 1 2 1
04 0C 02 7A 06
04 0C 02 0A 76
Graphic equalizer cut
gain set error
(Set −2dB,−4dB,−6dB)
Graphic equalizer cut
gain set error
(Set−8dB,−10dB,−12dB)
VIN=100mVrms
VGQCL −2 0
2
dB fIN=100Hz, 300Hz, 1kHz,
3kHz, or 10kHz
41
VIN=100mVrms
42
VGQCL −3 0
3
dB fIN=100Hz, 300Hz, 1kHz,
3kHz, or 10kHz
E4 0C 02 0A 06
32
31
04 EC 02 0A 06
00 05 03 04 0C E2 0A 06 81 07 1 1 1 2 1
04 0C 02 EA 06
04 0C 02 0A E6
Graphic equalizer channel
balance
GQCB
−1.5
0
1.5
dB Lch reference
−
−
−−−−−−−−−− −− − − −
Dynamic bass boost gain VBB
15 18 21
dB
VIN=40mVrms, fIN=75Hz
49pin=GND
41,42
41,42
32
31
00 E5 03 04 0C 02 0A 06 81 07 1 1 1 2 2
Dynamic bass boost
channel balance
VBCB −1.5 0 1.5
Input separation
∗
CTIN 80 90 −
Input mute attenuation ∗ VINMU 80 90
−
dB Lch reference
dB DIN AUDIO
dB DIN AUDIO
Microphone voltage gain GMIC 17 19 21
Microphone mute
attenuation
∗ VMICMU 80 90
−
RECOUT voltage gain
GREC 9 11 13
∗
RECOUT mute attenuation VRECMU 80 90 −
dB VIN=100mVrms
dB
VIN=100mVrms
DIN AUDIO
dB
dB DIN AUDIO
Selector D attenuation
Surround maximum
voltage gain
D2ATT −7
VSUMAX 7
−9 −11
9 11
dB
dB
VIN=100mVrms
fIN=10kHz
−
−
−−−−−−−−−− −− − − −
41
42
51
52
41
00 05 03 04 0C 02 0A 06 C1 07 1 1 1 2 1
61
41
42
32
31
00 05 03 04 0C 02 0A 06 01 07 1 1 1 2 1
56
32
31
00 05 03 04 0C 02 0A 06 81 07 1 2 − 1 1
56
32
31
00 15 03 04 0C 02 0A 06 81 07 1 2 − 1 1
41
42
51
52
00 05 03 04 0C 02 0A 06 81 07 1 1 1 2 1
41
42
51
52
00 0D 03 04 0C 02 0A 06 81 07 1 1 1 2 1
49
50
32
31
00 05 03 04 0C 02 0A 06 E1 07 4 1 1 2 1
41
42
32
31
00 05 1B 04 0C 02 0A 06 81 07 1 1 1 2 1
Design against radiation-proof is not made.
∗ VP-9690A (Average value detection, effective value display) DIN AUDIO filter by Matsushita Communication is used for ∗ measurement.
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