73K302L TDK [TDK Electronics], 73K302L Datasheet - Page 20

• Manufacturer Part Number: 73K302L
• Description: Single-Chip Modem
• Manufacturer: TDK [TDK Electronics]

Bell 212A, 103, 202
Single-Chip Modem
DYNAMIC CHARACTERISTICS AND TIMING
PARAMETER
Special Tone Detectors
Hold Time
Hysteresis
Detect Freq. Range
Output Smoothing Filter
Carrier VCO
DPSK Recovered Clock
Tone Generator
Answer tone
900 Hz SCT tone
202 Main Channel Mark
202 Back Channel Mark
1270 or 2225 Hz marks
Output Load
Out of Band Energy
Output Impedance
Clock Noise
Capture Range
Capture Time
Capture Range
Data Delay Time
Tone Accuracy
Tone Level
(continued)
CONDITION
Any Special Tone
TXA pin; FSK Single
Tone out for THD = -50 dB
in 0.3 to 3.4 kHz
Frequency >12 kHz in all modes
See Transmit Energy Spectrum
TXA pin
TXA pin; 76.8 kHz or 122.88 kHz
in 202 main channel
Originate or Answer
-10 Hz to +10 Hz Carrier
Frequency Change
% of data rate
(center at 1200 Hz)
Analog data in at RXA pin to
receive data valid at RXD pin
DTMF or FSK tones
For DTMF, must not be in 202 mode
(continued)
20
-625
MIN
-10
10
10
-3
-5
-1
4
1
3
5
2
NOM
0.1
20
40
30
+625
MAX
+10
100
-60
0.4
15
10
10
25
15
+3
50
50
50
+5
+1
mVrms
dBm0
UNIT
ppm
ms
ms
ms
ms
ms
ms
ms
dB
kΩ
Hz
dB
pF
Hz
%
Ω