SC91650A SILAN [Silan Microelectronics Joint-stock], SC91650A Datasheet - Page 17

• Manufacturer Part Number: SC91650A
• Description: 13 MEMORY TONE / PULSE DIALER WITH REDIAL SAVE HANDFREE & HOLD FUNCTION
• Manufacturer: SILAN [Silan Microelectronics Joint-stock]

Note: 1. Dist. (dB)=20log V
2. Sink current Isink=I/(1-Duty Cycle), I is the net DC current measured from ampere meter.
3. R*, C* mean other column and row.
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
a. V1…Vn are extraneous frequencies (ie, inter modulation and harmonic), components in the 500Hz
b. V
c. Whether keyboard is pushed refer to the TONE mode time diagram.
Silan
Semiconductors
to 3400Hz band.
L
,V
XMUTE
PMUTE
XMUTE
KEY IN
KEY IN
**PO
OSCO
**PO
OSCO
TONE
TONE
H
HKS
HKS
are the individual frequency components of DTMF signal.
1
2
+V
t
2
B
3
3
2
+V
t
t
DB
DB
t
t
3
t
TD
TD
PDP
2
+…V
Normal dialing
Normal dialing
2
2
t
t
Tone Mode Timming Diagram
n
IDP
ITP
2
Pusle Mode Timming Diagram
)
1/2
/ (V
L
2
+V
t
M
17
t
t
ITP
IDP
H
2
)
1/2
3
3
......High impedance
......High impedance
t
t
ITP
IDP
REV: 1.0
2001.01.15