SC9270C/D 查看數據表（PDF） - Silan Microelectronics
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SC9270C/D Datasheet PDF : 12 Pages
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Silan
Semiconductors
SC9270C/D
AC CHARACTERISTICS (All voltage referenced to Vss otherwise noted; VDD=5.0V, VSS=0V, TA=25°C,
fCLK=3.579545 MHz, using test circuit of figure 2 & 3. Typical figures are at 25°C and are for design aid only: not
guaranteed and not subject to production testing)
Parameter
Symbo
l
Test Conditions
Min Typ Max Unit
SIGNAL CONDITIONS
-- Note:1,2,3,5,6,9,11
--
--
-40 dBm
Valid Input Signal Levels
-- Note:1,2,3,5,6,9,11
--
--
7.75 mVRMS
(each tone of composite signal)
-- Note:1,2,3,5,6,9,11
+1
--
-- dBm
-- Note:1,2,3,5,6,9,11
883
--
-- mVRMS
Positive Twist Accept
-- Note:2,3,6,9,11
--
10
--
dB
Negative Twist Accept
-- Note:2,3,6,9,11
--
10
--
dB
Frequency Deviation Accept Limit
-- Note:2,3,5,9,11
-- ±1.5%±2Hz --
Frequency Deviation Reject Limit
-- Note:2,3,5,11
±3.5
--
--
Thrid Tone Tolerance
-- Note:2,3,4,5,9,13
-18.5
--
dB
Noise Tolerance
-- Note:2,3,4,5,7,9,10
--
-12
dB
Dial Tone Tolerance
-- Note:2,3,4,5,8,9,11
--
+18
--
dB
TIMING
Tone Present Detection Time
tDP Refer to Fig. 4. Note:12
5
14
16 ms
Tone Absent Detection Time
tDA Refer to Fig. 4. Note:12
0.5
4
8.5 ms
Tone Duration Accept
tREC User adjustable
--
--
40 ms
Tone Duration Reject
tREC User adjustable
20
--
--
ms
Interdigit Pause Accept
tID User adjustable
--
--
40 ms
Interdigit Pause Reject
tDO User adjustable
20
--
--
ms
OUTPUTS
Propagation Delay (St to Q)
tPQ TOE=VDD
--
8
11
µs
Propagation Delay (St to StD)
tPSED TOE=VDD
--
12
--
µs
Output Data Set Up (Q to Std)
tQSED TOE=VDD
--
4.5
--
µs
Propagation Delay (TOE to Q Enable) tPTE RL=10kΩ, CL=50pf
--
50
--
ns
Propagation Delay (TOE to Q Disable) tPTD RL=10kΩ, CL=50pf
--
300
--
ns
CLOCK
Crystal/Clock Frequency
fC --
3.5759 3.5759 3.581 MHz
Clock Input Rise Time
tLHCL Ext. clock
--
--
110 ns
Clock Input Fall Time
tHLCL Ext. clock
--
--
110 ns
Clock Input Duty Time
DCCL Ext. clock
40
50
60
%
Capacitive Load (OSCO)
CLO --
--
--
30
pf
Notes: 1. dBm = decibels above or below a reference power of 1mW into a 600 Ohm load.
2. Digit sequences consists of all 16 DTMF tones.
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.1 2001.04.27
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