CXA1782 SONY [Sony Corporation], CXA1782 Datasheet - Page 26

• Manufacturer Part Number: CXA1782
• Description: RF Signal Processing Servo Amplifier for CD players
• Manufacturer: SONY [Sony Corporation]

4. $3X
These commands control the balance and gain control circuit switches used during automatic tracking
adjustment.
In the initial resetting state, BAL1 to BAL3 switches are OFF and TOG1 to TOG3 switches are ON.
• Balance adjustment
• Gain adjustment
The balance adjustment switches BAL1 to BAL3 can be controlled by setting D3 = 0. The switches are set
using D0 to D2.
At this time, the balance adjustment LPF comparator output is selected at the SENS pin.
Data is set by specifying switch conditions D0 to D2 and sending a latch pulse with D3 = 0.
Sending a latch pulse with D3 = 1 does not change the balance switch settings.
The gain adjustment switches TOG1 to TOG3 can be controlled by setting D3 = 1. These switches are set
using D0 to D2. At this time, the balance adjustment HPF comparator output is selected for SENS pin.
In a fashion similar to the method used with the balance adjustment, set the data by sending a latch pulse
with D3 = 1, specifying the switch conditions D0 to D2.
Switch Control
BAL1 to BAL3
TOG1 to TOG3
Switch control
Balance adjustment
Gain adjustment
NO
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Adjustment Completed
Adjustment Completed
Is the frequency
high enough ?
Balance OK ?
SENS output
START
C. OUT
YES
GAIN OK ?
START
SENS
YES
NO
CXA1782CQ/CR