CXA1797 SONY [Sony Corporation], CXA1797 Datasheet - Page 16

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

Level meter
Level meter
Level meter
Level meter
Level meter
Playback input
switch
Playback input
switch
Playback input
switch
Playback input
switch
Playback input
switch
Playback input
switch
BIAS SW
BIAS SW
BIAS SW
BIAS SW
Block
Level meter amplifier
Level meter characteristics 2
(REC IN = 1 kHz, -22 dBv)
Level meter amplifier
Level meter characteristics 3
(REC IN = 1 kHz, -36 dBv)
Level meter amplifier
Level meter characteristics 4
(REC IN = 1 kHz, -46 dBv)
Level meter amplifier
Level meter characteristics 5
(REC IN = no signal)
Level meter amplifier
Level meter CAL characteristics
(REC IN = 1 kHz, -58 dBv)
Playback input switch gain
(PB IN = 1 kHz, -21 dBv)
Playback input switch
Signal handling
(1 kHz, THD = 1%)
Playback input switch
Total harmonic distortion
(1 kHz, -21 dBv)
Playback input switch
S/N ratio
("A"-WGT filter)
Playback input switch
A/B DECK crosstalk
A-DECK mode
Playback input switch
Output DC offset voltage
(PB OUT pin)
Bias maximum output voltage
NORMAL mode
Bias output voltage 1
CrO
Bias output voltage 2
METAL mode
Bias output voltage 3
2
mode
Item
METER ON, REC mode
Input a 1 kHz, -22 dBv (+4 dB level up) signal to the REC
IN pin and measure the output DC voltage at the METER
pin.
METER ON, REC mode
Input a 1 kHz, -36 dBv (-10 dB level down) signal to the
REC IN pin and measure the output DC voltage at the
METER pin.
METER ON, REC mode
Input a 1 kHz, -46 dBv (-20 dB level down) signal to the
REC IN pin and measure the output DC voltage at the
METER pin.
METER ON, REC mode
With no signal, measure the DC offset voltage at the
METER pin.
CAL ON, REC mode
Input a 1 kHz, -58 dBv (-32 dB level down) signal to the
REC IN pin and measure the output DC voltage at the
METER pin.
Input a 1 kHz, -21 dBv signal to the PB IN pin and
measure the level.
A-DECK mode
Input a 1 kHz signal to the PB IN1 pin and set the output
level so that the THD is 1%.
A-DECK mode
Input a 1 kHz, -10 dBv signal (input reference level) to the
PB IN1 pin and measure the distortion. (Measure the
distortion as THD + N.)
A-DECK mode
With no signal, measure the noise using the "A"-WGT
filter. (The measured value is indicated as the relative
value compared to the reference level.)
A-DECK mode
Input a 1 kHz, -9 dBv (+12 dB level up) signal to the B-
DECK side and measure the A/B-DECK crosstalk. (Use a
1 kHz BPF.)
A-DECK mode
With no signal, measure the DC offset voltage of the PB
OUT pin.
BIAS ON mode, RL = 4.7 kΩ
Measure the output DC voltage of the BIAS OUT pin.
NORMAL mode
Set the external feedback resistance to 56 kΩ, 11 kΩ,
11 kΩ, and 11 kΩ, and measure the output DC voltage of
the BIAS OUT pin.
CrO
Set the external feedback resistance to 56 kΩ, 11 kΩ,
11 kΩ, and 11 kΩ, and measure the output DC voltage of
the BIAS OUT pin.
METAL mode
Set the external feedback resistance to 56 kΩ, 11 kΩ,
11 kΩ, and 11 kΩ, and measure the output DC voltage of
the BIAS OUT pin.
2
mode
—16—
Conditions
–22.0 –21.0 –20.0 dBv
–0.75 –0.5 –0.25
2.75 3.05 3.35
1.85 2.15 2.45
12.0 30.0
80.0 84.0
–0.2
–2.4 –2.2 –2.0
1.2
1.2
4.8
4.2
Min. Typ. Max.
—
—
—
Specifications
–89.0 –80.0 dB
0.01
0.02
1.5
1.5
0.0
5.0
4.5
1.8
0.1
1.8
0.5
0.2
4.8
CXA1797Q
—
—
—
Unit
dB
dB
%
V
V
V
V
V
V
V
V
V
V