w91322l Winbond Electronics Corp America, w91322l Datasheet - Page 4

• Manufacturer Part Number: w91322l
• Description: Tone/pulse Dialer With Handfree Lock And Hold Function
• Manufacturer: Winbond Electronics Corp America

Pin Description, continued
SYMBOL
V
DP / C5
MUTE
DTMF
DD
H/P
NC
, V
SS
18-PIN
14, 6
11
12
5
-
(W91320LN
W91320LN
W91320LN
W91320LN
W91320LN
20-PIN
16, 6
(16, 7
only)
only)
only)
only)
only)
(12,
(13,
13
15
14
(6,
5
22-PIN
18, 7
14
17
15
6
- 4 -
I/O
O
O
O
-
I
N-channel open drain dialing pulse
output.
Flash key will cause DP to be active in
either tone mode or pulse mode.
The timing diagram for pulse mode is
shown in Figure 1(a, b, c, d).
Power input pins.
The H/P MUTE is a conventional
inverter output. During pulse dialing,
flash break, one-key redial break, and
hold period, this output is active high;
otherwise, it remains in low state.
No connection.
In pulse mode, this pin remains in low
state at all time.
In the tone mode, it will output a dual or
single tone.
Detailed timing diagram for tone mode
is shown in Figure 2(a, b, c, d).
R1
R2
R3
R4
C1
C2
C3
Specified
W91320N SERIES
1209
1336
1477
697
770
852
941
Output Frequency
FUNCTION
Actual
1216
1332
1472
699
766
848
948
Error %
+0.28
-0.52
-0.47
+0.74
+0.57
-0.30
-0.34