TC94A48FG Datasheet, PDF (28/36 Pages) Toshiba Semiconductor – Single-chip Audio Digital Signal Processor

TC94A48FG
AD Converter: LIN and RIN pin input, Vin_ref: 1 kHz, 800 mVrms (unless otherwise
specified), SDO0 pin output monitored
Characteristics
Maximum input signal
Input impedance
S/N ratio
THD + N
Crosstalk
Dynamic range
L to R gain error
Symbol
Test Condition
Min. Typ. Max. Unit
Vin
Zin
S/Na
THDa
CTa
DRa
Vdlr
Input level that drives ADC output to
digital full scale.
⎯
⎯
Each of LIN and RIN pins
20
27
A-Weight, Input AC shorted,
Crystal: 11.2896 MHz
87
93
20 kHz LPF,
Crystal: 11.2896 MHz
⎯ −83
20 kHz LPF, Lch to Rch/ Rch to Lch,
Crystal: 11.2896 MHz
⎯ −85
A-Weight, -60dB for Vin_ref input,
Crystal: 11.2896 MHz
87
93
−0.5
0
800 mVrms
34
kΩ
⎯
−77
−78
dB
⎯
0.5
DA Converter: SDO0 to SDO3 pin input, SDI0_ref = 0 dBFS, 1 kHz (unless otherwise
specified), DAO1 to DAO6 pin output monitored.
Characteristics
Output signal level
S/N ratio
THD + N
Crosstalk
Dynamic range
Channel-to-channel gain error
Symbol
Ao
S/Nd
THDd
CTd
DRd
Vddo
Test Condition
Min. Typ. Max. Unit
Output voltage at digital full-scale input 790 830
A-Weight,
Crystal: 11.2896 MHz
90
98
20 kHz LPF
Crystal: 11.2896 MHz
⎯ −88
20 kHz LPF,
Crystal: 11.2896 MHz
⎯ −90
A-Weight
Crystal: 11.2896 MHz
88
95
DAO1~DAO6 pin output monitored.
−0.5
0
870 mVrms
⎯
−75
−83
dB
⎯
0.5
28
2005-09-28