CXA2561Q
(Ta = 25°C, VCC = 8.0V, DVCC = 5.0V)
Typical pin voltage
I/O
resis-
tance
Pin
No.
Symbol
I/O
Equivalent circuit
Description
DC
AC
Vcc
Dolby NR control.
Low (open):
NR OFF
16 NRSW
High: NR ON
0.0V
147
16
19
when
open.
—
I
100kΩ
100k
Head select control.
Low (open):
19 DRSW
FORWARD
High: REVERSE
GND
Vcc
Music sensor mode
control.
Low (open): G1
High: G2
0.0V
when
open.
147
20 MSMODE
—
I
100kΩ
20
100k
GND
Vcc
Resistance for
setting the reference
current.
25 DIREF
1.2V
—
—
—
(Connects 20kΩ
between DIREF pin
and GND for the
standerd setting.)
147
25
GND
—
I
26
—
—
—
Ground.
GND
0.0V
4.0V
31
40
PBFB2
PBFB1
Playback equializer
amplifier feedback.
–70dBm
Vcc
Playback equializer
amplifier input.
(REVERSE head
connected)
32
39
34
37
32 PBRIN2
39 PBRIN1
150
150
50p
31
40
50p
–70dBm
—
4.0V
I
Playback equializer
amplifier input.
(FORWARD head
connected)
GND
34
37
PBFIN2
PBFIN1
– 6 –
SONY [ SONY CORPORATION ]
