BU8732AKV Datasheet, PDF (9/11 Pages) Rohm – CODEC IC for digital mobile phone

Communication ICs
BU8732AKV
< Tone block >
Parameter
Tone output level
Tone distortion
Symbol Min. Typ. Max. Unit
Conditions
VTNH
−16
−14
−12
HTONE 2kHz, DTMF / TONE→AUDO
EV4=0dB
−16
−14
−12
HTONE 2kHz, DTMF / TONE→TAUDO
dBV _EV3=0dB
VTNL
−16
−14
−12
LTONE 384Hz, DTMF / TONE→AUDO
EV4=0dB
SDTN
−
−
−25
dB
HTONE 1kHz, DTMF / TONE→AUDO
EV4=0dB
< Reference block >
Parameter
Output reference signal
Voltage
input/output current
Symbol
VOTX
VORX
VOCODEC
IOTX
IORX
IOCODEC
Min.
−
−
−
−10
−10
−10
Typ.
1.5
1.5
1.4
−
−
−
Max.
−
−
−
10
10
10
Unit
Conditions
TXREF, All power on
V
RXREF, All power on
CODECREF, All power on
TXREF, All power on, VOTX ± 50mV
µA RXREF, All power on, VORX ± 50mV
CODECREF, All power on, VOCODEC ± 50mV
< Ringer driver block >
Parameter
Max. output drive current
Leakage current
Symbol
IORG1
IORG2
IORG3
IL1
IL2
IL3
Min.
30
50
150
−
−
−
Typ.
−
−
−
−
−
−
Max.
−
−
−
5
5
5
Unit
Conditions
RINGER1=ON, Vsat<0.3
mA RINGER2=ON, Vsat<0.4
RINGER3=ON, Vsat<0.7
RINGER1=OFF, VO=3V
µA RINGER2=OFF, VO=3V
RINGER3=OFF, VO=3V
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