73K322L 데이터 시트보기 (PDF) - TDK Corporation
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73K322L Datasheet PDF : 26 Pages
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73K222BL
V.22, V.21, Bell 212A, Bell 103
Single-Chip Modem with Integrated Hybrid
ELECTRICAL SPECIFICATIONS (continued)
DYNAMIC CHARACTERISTICS AND TIMING
(TA = -40°C to +85°C, VDD = recommended range unless otherwise noted.)
PARAMETER
DPSK MODULATOR
Carrier Suppression
Output Amplitude
FSK MODULATOR/DEMODULATOR
Output Frequency Error
Transmit Level
Harmonic Distortion in
700-2900 Hz band
Output Bias Distortion
Total Output Jitter
DTMF GENERATOR
Frequency Accuracy
Output Amplitude
Output Amplitude
Twist
Long Loop Detect
Dynamic Range
CALL PROGRESS DETECTOR
Detect Level Range
Reject Level
Delay Time
Hold Time
Hysteresis
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
MIN
55
-11.5
-0.35
-11.5
-15
-0.25
-10
-8
1.0
-38
-38
-43
27
27
2
NOM
-10.0
-10.0
-60
±8
-9
-7
2.0
45
MAX
-9
+0.35
-9
-50
+15
+0.25
-8
-6
3.0
-28
-3
80
80
UNIT
dB
dBm0
%
dBm0
DB
%
%
%
dBm0
dBm0
dB
dBm0
dB
dBm0
dBm0
ms
ms
dB
TXA1
RXA
R1
600 Ω
MIDCOM
671-8001
TXA2
C
0.033 µf
1:1
600 Ω
R2
600
(NOMINAL TELEPHONE
LINE IMPEDANCE)
FIGURE 1: Analog Interface Hybrid Loading
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. The interface circuit
(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).
17
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