![](http://datasheet.mmic.net.cn/340000/CXA1597M_datasheet_16464919/CXA1597M_7.png)
– 7 –
CXA1597M/P
NORM-tape, NORM-speed mode, Rg = 5.1k
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.)
NORM-tape, NORM-speed mode
With no signal, measure the DC offset voltage of
the REC OUT pin.
NORM-tape, NORM-speed mode, REC-MUTE = 0.5V
Input a 1kHz signal (+12dB level up) and
measure the attenuation when REC MUTE is on.
(Use a 1kHz BPF.)
NORM-tape, NORM-speed mode, REC-MUTE = 2.5V
Input a 1kHz, 0.0dB (reference level) signal and
measure the attenuation characteristics curve of
the soft mute function. (when REC-MUTE = 2.5V)
NORM-tape, NORM-speed mode, REC-CAL = 5.0V
Input a 315Hz signal (–20dB level down) and
measure the amount of change compared to
when the REC-CAL function is at the standard
setting.
NORM-tape, NORM-speed mode, REC-CAL = 0.0V
Input a 315Hz signal (–20dB level down) and
measure the amount of change compared to
when the REC-CAL function is at the standard
setting.
NORM-tape, NORM-speed mode, Gp-CAL = 5.0V
Input a 8kHz signal (–20dB level down) and
measure the amount of change compared to
when the Gp-CAL function is at the standard
setting.
NORM-tape, NORM-speed mode, Gp-CAL = 0.0V
Input a 8kHz signal (–20dB level down) and
measure the amount of change compared to
when the Gp-CAL function is at the standard
setting.
TAPE EQ control pin voltage
TAPE EQ control pin voltage
TAPE EQ control pin voltage
SPEED control pin voltage
SPEED control pin voltage
57
–500
—
–7.0
4.1
–8.9
3.9
–5.9
4.2
2.2
0.0
3.5
0.0
65
0.0
–91
–5.5
6.1
–6.9
5.9
–3.9
—
—
—
—
—
—
500
–80
–4.0
8.1
–4.9
7.9
–1.9
V
CC
2.8
0.5
V
CC
0.5
dB
mV
dB
dB
dB
dB
dB
dB
V
V
V
V
V
NORM-NORM mode
REC-EQ S/N ratio 1
("A"-WGT filter)
NORM-NORM mode
Output DC offset voltage
(REC OUT pin)
NORM-NORM mode
REC-EQ mute characteristics 1
(REC-MUTE = 0.5V)
NORM-NORM mode
REC-EQ mute characteristics 2
(REC-MUTE = 2.5V)
NORM-NORM mode
REC-EQ REC-CAL characteristics 1
(REC-CAL = 5.0V)
NORM-NORM mode
REC-EQ REC-CAL characteristics 2
(REC-CAL = 0.0V)
NORM-NORM mode
REC-EQ Gp-CAL characteristics 1
(GP-CAL = 5.0V)
NORM-NORM mode
REC-EQ Gp-CAL characteristics 2
(GP-CAL = 0.0V)
R
Mode control
Control circuit high level
Mode control
Control circuit medium level
Mode control
Control circuit low level
Mode control
Control circuit high level
Mode control
Control circuit low level
C
T
s
B
s
Item
Conditions
Min.
Typ.
Max. Unit