BD37069FV-M Datasheet, PDF (1/41 Pages) Rohm – Sound Processor for Car Audio with Built-in High-Voltage Amplifier

Datasheet
Sound Processor for Car Audio
with Built-in High-Voltage Amplifier and
2^nd Order Post Filter
BD37069FV-M
General Description
BD37069FV-M is a sound processor developed for car
audio with built-in selector of six stereo inputs and output
interfaced to ADC after adjusting signal level.
BD37069FV-M has a 6-channel volume circuit and
built-in 2^nd order post filter which reduces the out-of
-band noise. The High-Voltage function is capable to
reach up to 5.2VRMS maximum output. Furthermore, the
IC is simple to design due to the built-in TDMA noise
reduction systems.
Key Specifications^(Note2)
Total Harmonic Distortion:
0.003%(Typ)
Maximum Input Voltage:
Common Mode Rejection Ratio :
2.1VRMS(Typ)
55dB(Min)
Maximum Output Voltage:
Output Noise Voltage:
Residual Output Noise Voltage:
Ripple Rejection Ratio:
5.2VRMS(Typ)
23μVRMS(Typ)
10.5μVRMS(Typ)
-70dB (Typ)
Operating Temperature Range:
-40°C to +85°C
(Note2)These specifications are High-Voltage mode2.
Features
 AEC-Q100 Qualified ^(Note1)
 Built-in differential input selector that can select
single-ended / differential input
 Reduce switching pop noise of input gain control due
to the built-in advanced switch circuit
 Less out-of-band noise of DAC by built-in 2^nd order
post filter
 Built-in buffered ground isolation amplifier to achieve
high CMRR characteristics
 Built-in TDMA noise reduction circuit reduces the
additional components for external filter
 Available to output 5.2VRMS by High-Voltage function
(This device is possible to 3.2VRMS output by using
another High-Voltage mode, VCCH=11.5V)
 Available to control by 3.3V / 5V for I²C-bus
controller
 The input and output terminals are located together to
arrange the flow of signal in a same direction making
the PCB layout easier and PCB area smaller
(Note 1) Grade 3
Package
SSOP-B40
W(Typ) x D(Typ) x H(Max)
13.60mm x 7.80mm x 2.00mm
Applications
Car Audio and Other Audio Equipment
Typical Application Circuit
A1
CD
A2
B1
USB
B2
CP1
TUN
CN
CP2
DP1
AUX
DN
DP2
EP1
AUX
EN
EP2
FP1
FN1
BT
FN2
FP2
ADC
DSP
DAC
IG1 IG2 INF2 INF1 INR2 INR1
INS INC
Main Gain adjust Sub Gain adjust
Fader
boost ★
Fader
boost ★
2nd order
LPF
2nd order
LPF
BD37069FV-M
Fader
ATT★
Fader
ATT★
Level
Shift
Sub SEL
Level
Shift
OUTC
OUTS
Rear SEL
Fader
boost ★
Fader
boost★
2nd order
LPF
2nd order
LPF
Fader
ATT★
Fader
ATT★
Level OUTR1
Shift
Level OUTR2
Shift
Front SEL
Fader
boost ★
Fader
boost★
2nd order
LPF
2nd order
LPF
Fader
ATT★
Fader
ATT★
★ Level
Shift
OUTF1
★ Level
Shift
OUTF2
Advanced Switch
MIN
NAVI
Figure 1. Typical Application Circuit
○Product structure：Silicon monolithic integrated circuit
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product has no designed protection against radioactive rays
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TSZ02201-0C2C0E100270-1-2
12. MAY. 2016 Rev.001