TSC73M223 Datasheet, PDF (4/6 Pages) TDK Electronics – 1200 Baud FSK Modem

73M223
1200 Baud FSK Modem
ELECTRICAL CHARACTERSITICS
Unless otherwise specified, 4.5 <VDD <13 VDC, VSS = 0 VDC, -25° C <TA
POWER SUPPLY
PARAMETER
TEST CONDITIONS
MIN
NOM MAX
UNIT
VDD Voltage Supply Range
4.5
13
V
Supply Current
VDD = 5V 25° C
2.0
mA
VDD = 12V 25° C
5.0
mA
Digital Inputs
Input Low Voltage VIL
VSS - 0.3
VSS + 1.5 V
Input High Voltage VIH
VDD - 1.5
VDD + 0.3 V
Input Low Current IIL
-1
µA
Input High Current IIH
1
µA
Digital Outputs
Output Low Voltage VOL
IOL < 1 µA
0.05
V
Output High Voltage VOH
IOL < -1 µA VDD = 5V
4.95
V
Output Low Current IOL
VOL = 0.4V VDD = 5V
0.5
mA
Output High Current IOH
VOH = 4.5V VDD = 5V
-0.2
mA
Analog Input Level @ RXA
Centered at VDD/2 + 0.5V
0.2
VDD/4 Vpp
Analog Input Level @ RXF
*DC Level between VDD & VSS
0.2
VDD/2 VDC
Error Rate
S/N = 8 dB Input @ RXF
5 x 10^-3
Analog Output Level @ TXA
RL ≥ 10K
7; = 0
VDD/4
Vpp
7; = 1
VDD/2
VDC
Output Frequency @ TXA
XTAL = 3.1872 MHz TXD=1
1302
Hz
TXD=0
2097
Hz
Output Harmonics
2nd to 14th Harmonics
-60
-50
dB
15th Harmonic
-20
dB
Input Filter (RFX)
*Input = 200 mVp-p to VDD/2 Vp-p
Lower 3 dB Corner
760
Hz
Upper 3 dB Corner
2625
Hz
* Note: The 73M223 RXF input is AC coupled internally but the DC value of the input must be between the two
supplies VDD & VSS.
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