CXA1797 SONY [Sony Corporation], CXA1797 Datasheet - Page 17

• Manufacturer Part Number: CXA1797
• Description: Dolby B-C Type Noise Reduction System with Recording Equalizer Amplifier
• Manufacturer: SONY [Sony Corporation]

DOLBY
DOLBY
DOLBY
DOLBY
DOLBY
DOLBY
DOLBY
DOLBY
DOLBY
DOLBY
DOLBY
DOLBY
DOLBY
DOLBY
DOLBY
DOLBY
DOLBY
Block
Dolby reference level
REC mode
REC IN level
PB mode
PB IN level
B type encoding
Boost characteristics 1
B type encoding
Boost characteristics 2
B type encoding
Boost characteristics 3
B type encoding
Boost characteristics 4
C type encoding
Boost characteristics 1
C type encoding
Boost characteristics 2
C type encoding
Boost characteristics 3
C type encoding
Boost characteristics 4
C type encoding
Boost characteristics 5
C type encoding
Boost characteristics 6
PB mode
Frequency response
REC mode
Signal handling
NR OFF total harmonic distortion
Dolby B total harmonic distortion
Item
Value at the Dolby reference level of the REC OUT pin
REC mode, NR off, f = 1 kHz
Input a signal to the REC IN pin and measure the level at
which the level of the DOLBY OUT pin reaches -6 dBm.
PB mode, NR off, f = 1 kHz
Input a signal to the NR PB IN pin and measure the level
at which the level of the DOLBY OUT pin reaches
-6 dBm.
REC, Dolby B mode
Input a 500 Hz, -25 dB signal to the REC IN pin and
measure the boost at the REC OUT pin.
REC, Dolby B mode
Input a 5 kHz, -25 dB signal to the REC IN pin and
measure the boost at the REC OUT pin.
REC, Dolby B mode
Input a 10 kHz, -40 dB signal to the REC IN pin and
measure the boost at the REC OUT pin.
REC, Dolby B mode
Input a 10 kHz, 0 dB signal to the REC IN pin and
measure the boost at the REC OUT pin.
REC, Dolby C mode
Input a 500 Hz, -60 dB signal to the REC IN pin and
measure the boost at the REC OUT pin.
REC, Dolby C mode
Input a 500 Hz, -25 dB signal to the REC IN pin and
measure the boost at the REC OUT pin.
REC, Dolby C mode
Input a 2 kHz, -60 dB signal to the REC IN pin and
measure the boost at the REC OUT pin.
REC, Dolby C mode
Input a 2 kHz, -25 dB signal to the REC IN pin and
measure the boost at the REC OUT pin.
REC, Dolby C mode
Input a 5 kHz, -25 dB signal to the REC IN pin and
measure the boost at the REC OUT pin.
REC, Dolby C mode
Input a 10 kHz, 0 dB signal to the REC IN pin and
measure the boost at the REC OUT pin.
PB, Dolby off mode
Input a 20 kHz, -30 dBm signal to the NR PB IN pin and
measure the output at the REC OUT pin.
REC, NR off mode
Input a 1 kHz signal and set the output level so that the
THD is 1%. (Measure the distortion using a signal
boosted 13.5 dB from the reference.)
REC, NR off mode
Input a 1 kHz, +10 dB signal to the REC IN pin and measure
the distortion. (Measure the distortion as THD + N.)
REC, Dolby B mode
Input a 1 kHz, +10 dB signal to the REC IN pin and measure
the distortion. (Measure the distortion as THD + N.)
—17—
Conditions
–26.0 –25.0 –24.0 dBm
–31.0 –30.0 –29.0 dBm
–1.1
14.2 16.2 18.2
18.7 20.7 22.7
–5.5 –3.5 –1.5
–7.5 –6.0 –4.5 dBm
13.5 15.8
Min. Typ. Max.
1.4
3.9
9.7
7.2
5.4
3.5
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—
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Specifications
–6.0
10.4 11.4
0.02 0.15
0.04
2.9
5.4
0.4
9.2
7.4
5.5
11.2
4.4
6.9
1.9
9.4
7.5
0.2
CXA1797Q
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—
dBm
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
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