BU7861KN_10 Datasheet, PDF (5/14 Pages) Rohm – Mixer & Selector IC with PCM CODEC and 16bit D/A Converter

BU7861KN
Technical Note
・Pass Switch Block
Parameter
Min.
Limits
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
Parameter
Symbol
V_{DTMF_L}
Output Level
V_{DTMF_H}
V_{TONE_L}
V_{TONE_H}
Tone Distortion
S_DTN
Min.
-15.3
-12.8
-15.3
-12.8
－
Limits
Typ.
-14.3
-11.8
-14.3
-11.8
－
Max.
-13.3
-10.8
-13.3
-10.8
-38
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
・Microphone Bias Block
Parameter
Limits
Symbol
Unit
Min. Typ. Max.
Conditions
Output Voltage
VO
1.8
2.0
2.2
V Io=500µA
Maximum
Output Current
IO
2
－
－ mA
Load Stability
ΔVO1
－
14.0
30 mV Io=100µA～2mA
Output Noise Voltage
N
－
-109 -90 dBV C-Message Io=500µA
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5/13
2010.09 - Rev.A