SC9102C SILAN [Silan Microelectronics Joint-stock], SC9102C Datasheet - Page 9

• Manufacturer Part Number: SC9102C
• Description: TONE/PULSE DIALER WITH REDIAL FUNCTION
• Manufacturer: SILAN [Silan Microelectronics Joint-stock]

TEST CIRCUIT
Note: 1. Dist. (dB)=20log V
2. Sink current Isink=I/(1-Duty Cycle), I is the net DC current measured from ampere meter.
a. V1…Vn are extraneous frequencies (ie, inter modulation and harmonic), components in the 500Hz to 3400Hz band.
b. V
c. Whether keyboard is pushed refer to the TONE mode time diagram.
L
,V
Silan
Semiconductors
H
are the individual frequency components of DTMF signal.
Flash
1
3
5
7
key
HANGZHOU SILAN MICROELECTRONICS CO.,LTD.
keyboard
keyboard
Tone output voltage
Keypad input current (row group)
Operation
Pulse output sink current
current
(open drain structure)
1
2
+V
2
A
2
+V
V
V
V+
SS
DD
3
2
+…V
ROW
HKS V
V
V
V+
DD
SS
HKS
HKS
V
V+
A
n
DD
2
PO
)
1/2
V
V+
SS
DD
HKS
TONE
/ (V
V
MODE
MODE
SS
V
L
2
+V
VEXT
A
R*
C*
H
AC meter
10KΩ
counter
2
)
1/2
and
DP
DP
DT
9
2
4
6
8
keyboard
Standby
keypad input current (column group)
Tone distortion
current
Pulse output sink current
(inverter structure)
A
COLUMN
V
V+
HKS V
DD
V
V+
A
V
DD
V
V+
SS
DD
V
V
SS
HKS
V+
SS
DD
V
SS
PO
HKS
MODE
HKS
TONE
SC9102C/D
R*
V
C*
VEXT
Spectrum
A
analyzer
V
10KΩ
Rev: 2.0
2001-11-02