SC91710AS SILAN [Silan Microelectronics Joint-stock], SC91710AS Datasheet - Page 9

• Manufacturer Part Number: SC91710AS
• Description: T/P SWITCHABLE DIALER WITH REDIAL HANDFREE FUNCTION
• Manufacturer: SILAN [Silan Microelectronics Joint-stock]

TEST CIRCUIT
Note: 1. Dist. (dB)=20log V
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
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.
a. V1… Vn are extraneous frequencies (ie, inter modulation and harmonic), components in the 500Hz to
b. V
c. Whether keyboard is pushed refer to the TONE mode time diagram.
3400Hz band.
L
,V
H
are the individual frequency components of DTMF signal.
1
2
+V
2
2
+V
3
2
+… V
n
2
)
1/2
/ (V
L
2
+V
H
2
)
1/2
REV:2.2
SC91710A/B
Page 9 of 18
2007.03.07