ml7037 Oki Semiconductor, ml7037 Datasheet - Page 37

• Manufacturer Part Number: ml7037
• Description: Ml7037-003 Dual Echo Canceler & Noise Canceler With Dual Codec For Hands-free
• Manufacturer: Oki Semiconductor

Not for Publication
APPLICATION CIRCUIT (2)
Speech signal interface on line-side
Speech signal input on acoustic side
PCM coding format
PCM frame sync timing
PCM clock mode
MCU interface
OKI Semiconductor
(Conditions)
Power-down
Reset
+3.3V
1.0μF
1.0μF
10μF 0.1μF
10μF
10μF
10pF
10pF
0.1μF
0.1μF
1.0MΩ
10kΩ
10kΩ
10μF
1.0μF
0.1μF
10kΩ
10μF
12.288MHz
10kΩ
: Digital (PCM)
: Single
: µ-law PCM
: Short frame sync
: External clock mode (Clock slave)
: used
(NC)
150pF
0.1μF
0.1μF
LGSX
LINN
LVFRO
AVFRO
AGSX1
AIN1N
AGSX0
AIN0N
AIN0P
PDN
RST
AVDD
AVREF
AGND0
AGND1
DVDD0
REGOUT0
VBG
DGND0
DVDD1
REGOUT1
DGND1
MCK/XI
XO
Figure 28
ML7037
GPIB2 (VFROSEL)
GPIB4 (ALCTHR)
GPIB5 (SLPTHR)
GPIB1 (LINEEN)
GPIB3 (NCTHR)
GPIA4 (RPAD0)
GPIA5 (RPAD1)
GPIA6 (RPAD2)
GPIA7 (RPAD3)
GPIA0 (TPAD0)
GPIA1 (TPAD1)
GPIA2 (TPAD2)
GPIA3 (TPAD3)
GPIB6 (ECSEL)
GPIB7 (ECEN)
GPOC[7:0]
AVREFEN
SYNCSEL
MCUSEL
PCMSEL
CLKSEL
PCMO
GPIB0
SYNC
DOUT
TSTI2
TSTI1
TSTI0
EXCK
BCLK
PCMI
DEN
DIN
10kΩ
10kΩ
10kΩ
10kΩ
10kΩ
10kΩ
10kΩ
※ NC : No Connection
8
(NC)
(NC)
BCLK input （64kHz～
8kHz Sync signal input
Line-side PCM input
Line-side PCM output
Transmit-side volume control
Receive-side volume control
PEDL7037-003-05Zz_Digest
+3.3V
+3.3V
ML7037-003
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