cxa2054s Sony Electronics, cxa2054s Datasheet - Page 27

• Manufacturer Part Number: cxa2054s
• Description: Us Audio Multiplexing Decoder
• Manufacturer: Sony Electronics

Status registers
Description of Control Registers
ATT (4) :
VCO (6) :
FILTER (6) :
SPECTRAL (6) :
WIDEBAND (6) :
TEST-DA (1) :
TEST1 (1) :
PONRES
STEREO
SAP
NOISE
FILADJ
Register
Number of bits
Adjust the signal level input to COMPIN (Pin 19) to the standard input level.
Variable range of the input signal :
0
F
Adjust STEREO & SAP VCO free running frequency (fo).
Variable range :
0
3F = Free running frequency max.
Adjust the filter fo of the ST, SAP and dbx blocks.
Variable range :
0
3F = Frequency max.
Perform high frequency (fs=3 kHz) separation adjustment.
0
3F = Level min.
Perform low frequency (fs=300 Hz) separation adjustment.
0
3F = Level max.
Set filter adjustment mode.
0
1
In addition, the following outputs are present at Pins 44 and 43.
TVOUT-L (Pin 44) :
TVOUT-R (Pin 43) :
Set DAC output test mode and VCO adjustment mode.
0
1
In addition, the following outputs are present at Pins 44 and 43.
TVOUT-L (Pin 44) :
TVOUT-R (Pin 43) :
= Level min.
= Level max.
= Free running frequency min.
= Frequency min.
= Level max.
= Level min.
= Normal mode
= DAC output test mode and STVCO adjustment mode
= Normal mode
= FILTER (STA5) adjustment mode
1
1
1
1
1
POWER ON RESET detection;
Stereo discrimination of the COMPIN input signal;
SAP discrimination of the COMPIN input signal;
Noise level discrimination of the SAP signal;
Status of FILTER adjustment;
fo ±20 %
fo ±20 %
DA control DC level
STEREO VCO oscillation frequency (4f
SAP BPF OUT
NR BPF OUT
—27—
245 mVrms –5.0 dB to +3.0 dB
Contents
H
)
1 : RESET
1 : Stereo
1 : SAP
1 : Noise
1 : OK range
CXA2054S