CXA1734S
Description of Control Registers
ATT (4):
Adjust the signal level input to COMPIN (Pin 11) to the reference level (245 mVrms).
Variable range of the input signal: 245 mVrms –5.0 dB to +3.0 dB
0 = Level min.
F = Level max.
STVCO (6):
SAPVCO (4):
SAPLPF (4):
STLPF (6):
Adjust STEREO VCO free running frequency (f0).
Variable range:
f0 ±20%
0 = Free running frequency min.
3F = Free running frequency max.
Adjust SAPVCO free running frequency (f0).
Variable range:
f0 ±20%
0 = Free running frequency min.
F = Free running frequency max.
Adjust the filter f0 of the SAP block.
Variable range:
f0 ±20%
0 = Frequency min.
F = Frequency max.
Adjust the filter f0 of the ST and dbx blocks.
Variable range:
f0 ±20%
0 = Frequency min.
3F = Frequency max.
SPECTRAL (6): Perform high frequency (fs = 3 kHz) separation adjustment.
0 = Level max.
3F = Level min.
WIDEBAND (6): Perform low frequency (fs = 300 Hz) separation adjustment.
0 = Level min.
3F = Level max.
TEST1 (1):
Set filter adjustment mode.
0 = Normal mode
1 = STLPF (STA3) and SAPLPF (STA4) adjustment mode
In addition, the following outputs are present at Pins 28 and 29.
LOUT (Pin 29):
ROUT (Pin 28):
SAP BPF OUT
NR BPF OUT
TEST-DA (1):
Set DAC output test mode and STVCO adjustment mode.
0 = Normal mode
1 = DAC output test mode and STVCO adjustment mode
LOUT (Pin 29):
ROUT (Pin 28):
DA control DC level
STEREO VCO oscillation frequency (4 fH)
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SONY [ SONY CORPORATION ]
