ml7037-003 Oki Semiconductor, ml7037-003 Datasheet - Page 28

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

Microcontroller Interface (Serial Interface)
Note
*1 Echo cancellers, Noise canceller, slope filter, ALC = off
*2 Analog and digital gain = 1
*3 with a psophometric filter
*4 0.32Vrms = 0dBm0 = -7.7dBm (600
*5 Input signals = Idle pattern
AC Characteristics (Programmable Gain Characteristics)
Note *1 TPAD, RPAD
OKI Semiconductor
Transmit frequency
response
Receive frequency
response
Transmit signal to
distortion ratio
Receive signal to
distortion ratio
Transmit gain tracking
Receive gain tracking
Idle channel noise
Absolute signal level
(*4)
Transmit/Receive gain
accuracy
DVDD0,1=3.00V to 3.60V, AVDD=3.00V to 3.60V, DGND0,1=0.0V, AGND0,1=0.0V, Ta=-40°C to +85°C (otherwise specified)
DVDD0,1=3.00V to 3.60V, AVDD=3.00V to 3.60V, DGND0,1=0.0V, AGND0,1=0.0V, Ta=-40°C to +85°C (otherwise specified)
Programmable gain = 0dB
*2 Acoustic-side PGA’s（Programmable Gain Amp’s）, Line-side PGA
Parameter
Parameter
LossR1
LossR2
LossR3
LossR4
LossR5
Symbol
LossT1
LossT2
LossT3
LossT4
LossT5
LossT6
SDR1
SDR2
SDR3
SDR4
SDR5
GTR1
GTR2
GTR3
GTR4
GTR5
SDT1
SDT2
SDT3
SDT4
SDT5
GTT1
GTT2
GTT3
GTT4
GTT5
N
N
AVR
AVT
IDL
IDL
R
T
Symbol
G
G
AC1
AC2
300 to 3000

Frequency
0 to 3000
3968.75
3968.75
)
0 to 60
1020
3300
3400
1020
3300
3400
1020
1020
1020
1020
1020
(Hz)
—
—
against a set gain (*1)
against an adjacent gain step
(*2)
Condition
(dBm0)
Level
Condition
-30
-40
-45
-30
-40
-45
-10
-40
-50
-55
-10
-40
-50
-55
+3
+3
+3
+3
—
—
0
0
0
0
0
0
*1, *2, *3
*1, *2, *3
*1, *2, *3
*1, *2, *3
*1, *2, *3
Others
*1, *2
*1, *2
*1, *2
*5
0.285
0.285
-0.15
-0.15
-0.15
-0.15
-0.15
Min.
-0.2
-0.2
-0.5
-1.2
-0.2
-0.2
-0.5
-1.2
25
13
13
35
35
35
28
23
35
35
35
28
23
—
—
Min.
-1.0
-1.0
0
Reference
Reference
Reference
Reference
PEDL7037-003-01Zz_Digest
Typ.
0.32
0.32
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Typ.
—
—
0.359
0.359
Max.
0.25
-68
-72
0.8
0.8
0.2
0.8
0.8
0.2
0.2
0.5
1.2
0.2
0.2
0.5
1.2
—
—
—
—
—
—
—
—
—
—
—
—
-
Max.
+1.0
+1.0
ML7037-003
dBm0p
dBm0p
Vrms
Vrms
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
—
—
—
—
28/41
Unit
dB
dB