SC9102C Ver la hoja de datos (PDF) - Silan Microelectronics
Número de pieza
componentes Descripción
Fabricante
SC9102C Datasheet PDF : 16 Pages
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Silan
Semiconductors
SC9102C/D
TEST CIRCUIT
1 Operation
V+
current
A
keyboard
VDD
HKS
MODE
VSS
2 Standby V+
current
A
DP
VDD
HKS
DP
DT
VSS
3 Tone output voltage
V+
keyboard
VDD
VSS
TONE
HKS
counter
and
AC meter
10KΩ
4 Tone distortion
V+
keyboard
VDD
VSS
TONE
HKS
Spectrum
analyzer
V 10KΩ
5 Pulse output sink current
(open drain structure)
V+
Flash
key
VDD
PO
VSS HKS
A
VEXT
V
6 Pulse output sink current
(inverter structure)
V+
VDD HKS
PO
VSS
A
V
VEXT
7 Keypad input current (row group)
V+
A
VDD
R*
ROW
C*
HKS VSS MODE
8 keypad input current (column group)
V+
VDD
R*
COLUMN
C*
A
HKS VSS MODE
Note: 1. Dist. (dB)=20log{[V12+V22+V32+…Vn2)1/2]/[(VL2+VH2)1/2]}
a. V1…Vn are extraneous frequencies (ie, inter modulation and harmonic), components in the 500Hz to 3400Hz band.
b. VL,VH are the individual frequency components of DTMF signal.
c. Whether keyboard is pushed refer to the TONE mode time diagram.
2. Sink current Isink=I/(1-Duty Cycle), I is the net DC current measured from ampere meter.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD.
Rev: 2.0
9
2001-11-02
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