fx469 Consumer Microcircuits Limited, fx469 Datasheet - Page 6

• Manufacturer Part Number: fx469
• Description: 1200/2400/4800 Baud Ffsk Modem
• Manufacturer: Consumer Microcircuits Limited

Specification
Absolute Maximum Ratings
Exceeding the maximum rating can result in device damage. Operation of the device outside the operating limits is
not implied.
Supply voltage
Input voltage at any pin (ref V
Sink/source current (supply pins)
Total device dissipation @ T
Derating
Operating temperature range: FX469DW/LG/LS/P6
Storage temperature range:
Operating Limits
All device characteristics are measured under the following conditions unless otherwise specified:
V
Signal-to-Noise Ratio measured in the Bit-Rate Bandwidth Baud Rate = 1200 baud.
Characteristics
Static Values
Dynamic Values
DD
Supply Voltage
Supply Current Rx Enabled Tx Disabled
Logic ‘1‘ Level
Logic ‘0’ Level
Digital Output Impedance
Analogue and Digital Input Impedance
Tx Output Impedance
On-Chip Xtal Oscillator
Inverter d.c. Voltage Gain
Gain Bandwidth Product
Xtal Frequency
Xtal Frequency
Receiver
Signal Input Dynamic Range SNR = 50dB
Bit Error Rate
Receiver Synchronization SNR =12dB
Probability of Bit 16 Being Correct
Carrier Detect
Sensitivity
Probabilty of C.D. Being High
After Bit 16
0dB Noise
= 5.0V, T
AMB
Rx and Tx Enabled
Rx and Tx Disabled
R
R
= 25°C. Audio Level 0dB ref: = 300mVrms. Xtal/Clock = 4.032MHz.
(other pins)
IN
OUT
1200/2400/4800 Baud
AMB
SS
SNR = 12dB
SNR = 20dB
SNR = 12dB
No Signal
FX469J
FX469DW/LG/LS/P6
FX469J
1200 Baud
2400 Baud
4800 Baud
= 0V)
25°C
See Note
5, 10
3, 4
7, 8
5, 9
1
1
2
2
4
4
7
9
6
Min.
10.0
10.0
100
100
4.5
4.0
5.0
4.1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-0.3 to 7.0V
-0.3 to (V
+/- 30mA
+/- 20mA
800mW Max.
10mW/°C
-30°C to +70°C (plastic)
-30°C to +85°C (cerdip)
-40°C to +85°C (plastic)
-55°C to +125°C (cerdip)
1.008
4.032
0.995
0.995
Typ.
<1.0
0.05
650
230
5.0
3.6
4.5
4.0
0.6
2.5
1.5
1.5
-
-
-
-
-
-
-
-
DD
+ 0.3V)
Max.
1000
20.0
15.0
150
5.5
1.0
1.0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
mVrms
mVrms
Unit
MHz
MHz
MHz
MW
V/V
mA
mA
10
10
10
10
µA
kW
kW
kW
kW
V
V
V
4
3
3
8