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BU7861KN_10 Datasheet, PDF (4/14 Pages) Rohm – Mixer & Selector IC with PCM CODEC and 16bit D/A Converter | |||
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BU7861KN
Technical Note
ã»Codec Block
Parameter
Transmitting Side
Reference Input Level
Receiving Side
Reference Input Level
Pass Gain
Transmitter Signal vs.
General
Power Distortion
MICINâDSPOUT
Receiver Signal vs.
General
Power Distortion
DSPINâRECP
Transmitter
Transmission Level
MICINâDSPOUT
Receiver
Transmission Level
DSPINâRECP
Transmitter
Transmission Loss
F Special
MICINâDSPOUT
Receiver
Transmission Loss
F Special
DSPINâRECP
Noise during idle
transmission
Noise during idle
reception
Crosstalk
(Transmitterâ
Receiver)
MICINâ
DSPOUT
EXTINâ
DSPOUT
DSPINâ
RECP
DSPINâ
SPOUT
DSPINâ
EXTOUT
EXTINâ
RECN
EXTINâ
SPOUT
-45dBm0
-40dBm0
0, -30dBm0
-45dBm0
-40dBm0
0, -30dBm0
-55dBm0
-50dBm0
0, -40dBm0
-55dBm0
-50dBm0
0, -40dBm0
0.06kHz
0.2kHz
0.3ï½3.0kHz
3.4kHz
3.6kHz
3.78kHz
0.3ï½3.0kHz
3.4kHz
3.6kHz
3.78kHz
MICINâ
DSPOUT
DSPINâ
REC[P-N]
MICINâ
REC[P-N]
Crosstalk
(Receiverâ
Transmitter)
RX Higher Harmonic
Component
DSPINâ
DSPOUT
Distortion
2nd to 5th time
Min.
0.44
0.119
0.44
0.44
0.44
2.4
2.4
24
29
35
24
29
35
-0.9
-0.6
-0.3
-0.9
-0.6
-0.3
24
0
-0.3
-0.3
0
6.5
-0.3
-0.3
0.0
6.5
ï¼
ï¼
60
63
40
Limits
Typ.
0.50
0.135
0.50
0.50
0.50
3.2
3.2
ï¼
ï¼
ï¼
ï¼
ï¼
ï¼
ï¼
ï¼
ï¼
ï¼
ï¼
ï¼
ï¼
ï¼
ï¼
ï¼
ï¼
ï¼
ï¼
ï¼
ï¼
ï¼
ï¼
ï¼
70
68
50
Unit
Max.
Conditions
0.56
Vrms
When 1020Hz, sine wave, 0dBm0 transmitting
MIC amp gain 0dB, Tx_Vol 0dB
0.151
Vrms
When 1020Hz, sine wave, 0dBm0 transmitting
Amp gain 11.37dB, Tx_Vol 0dB
0.56
Vrms
At 1020Hz, sine wave, 0dBm0 input
Rx_Vol 0dB
0.56
Vrms
At 1020Hz, sine wave, 0dBm0 input
Rx_Vol 0dB
0.56
Vrms
At 1020Hz, sine wave, 0dBm0 input
Rx_Vol 0dB
4.0
dB
EXTIN input, Rx_testline path
Rx_Vol 0dB
4.0
dB
EXTIN input, Rx_testline path
SPRX_Vol 0dB
ï¼
1020Hz, sine wave,
ï¼ dB MIC amp gain 0dB
ï¼
Tx_Vol 0dB, C-MESSAGE
ï¼
ï¼
dB
1020Hz, sine wave
Rx_Vol 0dB, C-MESSAGE
ï¼
0.9
1020Hz, -10dBm0 typical
0.6 dB MIC amp gain 0dB
0.3
Tx_Vol 0dB, C-MESSAGE
0.9
0.6
dB
1020Hz, -10dBm0 typical
Rx_Vol 0dB, C-MESSAGE
0.3
ï¼
2.5
0.3
1020Hz, 0dBm0 at transmission
dB MIC amp gain 0dB
0.9
Tx_Vol 0dB
ï¼
ï¼
0.5
0.9
ï¼
dB
1020Hz, 0dBm0 at input
Rx_Vol 0dB
ï¼
-65
dBm0
MIC amp gain 0dB
Tx_Vol 0dB, C-MESSAGE
-75
dBV
DSPIN ALL0
Rx_Vol 0dB,
C-MESSAGE
1020Hz, 0dBm0 at transmission
ï¼
dB
MIC amp gain 0dB
DSPIN ALL0 Tx_Vol 0dB
Rx_Vol 0dB ST_MT OFF
1020Hz, 0dBm0 at input, 2040Hz component
ï¼
dB
MIC amp gain 30dB
Tx_Vol 0dB Rx_Vol 0dB
ST_MT ON
ï¼
dB
1020Hz, sine wave, 0dBm0 at input
Rx_Vol 0dB
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© 2010 ROHM Co., Ltd. All rights reserved.
4/13
2010.09 - Rev.A
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