FX203LS 查看數據表（PDF） - CML Microsystems Plc
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FX203LS Datasheet PDF : 8 Pages
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Specification
Characteristics
Decoder
Signal Input Range
Decode Bandwidth -
Probability > 0.995
Probability > 0.995
:;,’
Probability > 0.995 ‘2
Not Decode Bandwidth -
Probability < 0.03
‘C
Probability < 0.03
‘E
Probability < 0.03
Noise Response Rate
:;,’
Noise Response Rate ‘E
Noise Response Rate ‘Z
Decode Response Time
Notone to Tone
Tone to Notone
Timing - (Figure 3)
Address Set Up Time
tA S
Read/Write Set Up lime
t Flws
Address Hold Time
tAH
Read/Write Recovery Time tRWR
Chip Select Access Time tACS
Output Hold Time (Read) t CmR
Data Set Up Time (Write) tDSW
Data Hold Time (Write)
t DHW
Power Up Reset Time
TS
- ADDRESS -
A,, AI
See Note
Min.
TYP-
Max.
Unit
4
-26.0
+7.0
dB
%
%
%
6
+3.0
%
6
6
+3.0
±4.5
1;
7,12
1.0
Digits
7,12
1.0
Digits
7,13
1.0
Digits
5
20
25
TP
ms
33
58
ms
50
ns
50
ns
ns
:
ns
250
ns
0
100
ns
150
ns
20
ns
3.0
ms
Y
EATADOUT (READ)
03
/-d t OHR $-
VALID DATA
;ATADIN (WRITE)
03
Fig.3 CPU interface Timing Diagram
Notes 1.
2.
3.
4.
5.
6.
7.
6.
9.
10.
11.
12.
13.
14.
No TX Tone load.
Sink/Source currents $0.1 mA.
To 90% of nominal output, (from ‘F tone’ to ‘not-F tone’).
Sine or Square, a.c. coupled input.
With minimum tone period (Tp) for the tone set, S/N ratio OdB.
Under all conditions of input amplitude and S/N ratio, with maximum Tp specified for the tone set.
Gaussian Noise Input 6kHz band limited with a maximum input level corresponding to l-digit code
falsing rate. (random to random single characters).
With each data line loaded as: C = 50pf and R =lOW.
V
Vz;; : ;.:;
External’connections on the Audio Output may alter these values.
Single digit response in a 40.0-hour period.
Single digit response in a 1 .O-hour period.
An emiter follower output with an internal 1OkD pulldown resistor.
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