73K212AL TDK [TDK Electronics], 73K212AL Datasheet - Page 17

• Manufacturer Part Number: 73K212AL
• Description: V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid
• Manufacturer: TDK [TDK Electronics]

PARAMETER
DPSK MODULATOR
FSK MODULATOR/DEMODULATOR
DTMF GENERATOR
CALL PROGRESS DETECTOR
ELECTRICAL SPECIFICATIONS
DYNAMIC CHARACTERISTICS AND TIMING
(TA = -40°C to +85°C, VDD = recommended range unless otherwise noted.)
Carrier Suppression
Output Amplitude
Output Frequency Error
Transmit Level
Harmonic Distortion in
700-2900 Hz band
Output Bias Distortion
Total Output Jitter
Frequency Accuracy
Output Amplitude
Output Amplitude
Twist
Long Loop Detect
Dynamic Range
Detect Level Range
Reject Level
Delay Time
Hold Time
Hysteresis
TXA1
RXA
TXA2
FIGURE 1: Analog Interface Hybrid Loading
0.033 µf
C
600 Ω
R1
MIDCOM
671-8001
600 Ω
1:1
(NOMINAL TELEPHONE
600
R2
LINE IMPEDANCE)
CONDITION
FIGURE 1
Measured between TXA1 and
TXA2
TX scrambled marks
FIGURE 1
CLK = 11.0592 MHz
Transmit Dotting Pattern
THD in the alternate band
DPSK or FSK
Transmit Dotting Pattern in ALB
@ RXD
Random Input in ALB @ RXD
FIGURE 1
Low Tone , DPSK Mode
High Tone , DPSK Mode
High-Tone to Low-Tone,
DPSK Mode
DPSK or FSK
Refer to Performance Curves
2-Tones in 350 - 600 Hz band
2-Tones in 350 - 600 Hz band
-70 dBm0 to -30 dBm0 STEP
-30 dBm0 to -70 dBm0 STEP
Single-Chip Modem with Integrated Hybrid
(continued)
17
V.22, V.21, Bell 212A, Bell 103
NOTE: Parameters expressed in dBm0 refer to
signals at the telephone line, i.e., across
R2 in Figure 1. All units in dBm0 are
measured at the line input to the
transformer.
(Figure 1) inserts an 8 dB loss in the
transmit path (TXA1 - TXA2 to line), and
a 3 dB loss in the receive path (line to
RXA).
-11.5
-0.35
-11.5
-0.25
MIN
-15
-10
-38
-38
-43
1.0
55
27
27
-8
2
NOM
-10.0
-10.0
-60
2.0
45
±8
-9
-7
The
interface
+0.35
+0.25
MAX
+15
-50
-28
3.0
80
80
-9
-9
-8
-6
-3
dBm0
dBm0
dBm0
dBm0
dBm0
dBm0
dBm0
UNIT
circuit
DB
ms
ms
dB
dB
dB
dB
%
%
%
%