BU7861KN_08 Datasheet, PDF (4/13 Pages) Rohm – Mixer & Selector with PCM CODEC and 16bit D/A Converter

3.78kHz
6.5
－
－
Noise during
transmission
idle MICIN→
DSPOUT
－
－
-65
dBm0
MIC amp gain 0dB
Tx_Vol 0dB, C-MESSAGE
Noise during
reception
idle DSPIN→
REC[P-N]
－
－
-75
dBV
DSPIN ALL0
Rx_Vol 0dB, C-MESSAGE
1020Hz, 0dBm0 at transmission
Crosstalk
(Transmitter→Receiver)
MICIN→
REC[P-N]
60
70
－
dB
MIC amp gain 0dB
DSPIN ALL0 Tx_Vol 0dB
Rx_Vol 0dB ST_MT OFF
1020Hz, 0dBm0 at input, 2040Hz
Crosstalk
(Receiver→Transmitter)
DSPIN→
DSPOUT
63
68
－
component
dB MIC amp gain 30dB
Tx_Vol 0dB Rx_Vol 0dB
ST_MT ON
RX Higher Harmonic Distortion 2^nd
Component
to 5^th time
40
50
－
dB
1020Hz, sine wave, 0dBm0 at input
Rx_Vol 0dB
・Pass Switch Block
Parameter
Min. Typ. Max. Unit
Conditions
※1
70
80
－
dB
Configured at each mute SW
Measured at 1kHz BPF
Mute Level
Configured at each mute SW
※2
70
80
－
dB
Leakage amount to each test line during normal
usage
Measured at 1kHz BPF
Receiving side is muted digitally by VIC_MT and SPVIC_MT.
※1 MIC_SEL, MIC_MT, EXTIN_MT, MEL_MT, VIC_MT, REC_MT, ST_MT, HSJL_MT, HSJR_MT,
SPVIC_MT, SPMEL_VOL, EXTOUT_SEL, TONE_MT, SOUND_MT, DIG_MT, AIN_MT, HP_SMT,
SPOUT_SMT, EXTOUT_SMT, REC_SMT, HPR_MT, HPL_MT
※2 Tx_test1, Tx_test2, Rx_test1, Rx_test2, REC_TST, HPR_TST, HPL_TST
・DTMF/TONE Generator Block
Item
Symbol
VDTMF_L
Output Level
VDTMF_H
VTONE_L
VTONE_H
Tone Distortion
SDTN
・Microphone Bias Block
Parameter
Output Voltage
Maximum Output
Current
Load Stability
Output
Voltage
Noise
Symbol
VO
IO
ΔVO1
N
Min.
-15.3
-12.8
-15.3
-12.8
－
Min.
1.8
2
－
－
Typ.
-14.3
-11.8
-14.3
-11.8
－
Typ.
2.0
－
14.0
-109
Max.
-13.3
-10.8
-13.3
-10.8
-38
Max.
2.2
－
30
-90
Unit
Conditions
dBV
f：DTMF_L
MEL_Vol 0dB
TONE→RECP
Rx_Vol 0dB
dBV
f：DTMF_H
MEL_Vol 0dB
TONE→RECP
Rx_Vol 0dB
dBV
f: designated TONE, low band TONE→RECP
MEL_Vol 0dB
Rx_Vol 0dB
dBV
f: designated TONE, high band TONE→RECP
MEL_Vol 0dB
Rx_Vol 0dB
dB
f=1kHz ( designated TONE) TONE→REC[P-N]
MEL_Vol 0dB
Rx_Vol 0dB C-Message
Unit
V Io=500A
Conditions
mA
mV Io=100A～2mA
dBV ^{C-Message Io=500A}
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