參數(shù)資料
型號: 73K324L-IGT
廠商: Electronic Theatre Controls, Inc.
英文描述: CCITT V.22bis, V.22, V.21, V.23, Bell 212A Single-Chip Modem
中文描述: 國際電話電報諮詢委員會V.22bis,.22,.21,.23,貝爾212A章單芯片調(diào)制解調(diào)器
文件頁數(shù): 19/31頁
文件大?。?/td> 183K
代理商: 73K324L-IGT
73K324L
CCITT V.22bis, V.22, V.21, V.23, Bell 212A
Single-Chip Modem
19
DYNAMIC CHARACTERISTICS AND TIMING
(TA = -40
°
C to +85
°
C, VDD = recommended range unless otherwise noted)
PARAMETER
CONDITION
MIN
NOM
MAX
UNIT
QAM/DPSK Modulator
Carrier Suppression
Output Amplitude
Measured at TXA
35
-11.5
dB
TX scrambled marks
ATT= 0100 (default)
-10.0
-9
dBm0
FSK Modulator/Demodulator
Output Freq. Error
CLK = 11.0592 MHz
-.31
+0.20
%
Transmit Level
ATT = 0100 (Default)
Transmit Dotting Pattern
-11.5
-10.0
-9
dBm0
TXA Output Distortion
Output Bias Distortion at RXD
All products through BPF
Dotting Pattern measured at RXD
Receive Level -20 dBm, SNR 20 dB
Integrated for 5 seconds
-45
+10
dB
%
-10
Output Jitter at RXD
-15
+15
%
Sum of Bias Distortion and
Output Jitter at RXD
Integrated for 5 seconds
-15
+15
%
2100 Hz Answer Tone Generator
Output Amplitude
ATT = 0100 (Default Level)
Not in V.21 or V.23 Mode
-11.5
-10
-9
dBm0
Output Distortion
DTMF Generator
Distortion products in receive band
Not in V.21 mode
-40
dB
Freq. Accuracy
Output Amplitude
-0.03
-10
+0.25
-8
%
Low Band, ATT = 0100
dBm0
Output Amplitude
High Band, ATT = 0100
-8
-6
dBm0
Twist
High-Band to Low-Band
Refer to Performance Curves
1.0
-43
2.0
3.0
-3.0
dB
Receiver Dynamic Range
dBm0
Call Progress Detector
In Call Init mode
Detect Level
Reject Level
460 Hz input signal
-34
0
dBm0
dBm0
-40
Delay Time
-70 dBm0 to -30 dBm0 STEP
25
ms
Hold Time
Hysteresis
-30 dBm0 to -70 dBm0 STEP
@ 460 Hz input signal
25
ms
dB
2
NOTE: Parameters expressed in dBm0 refer to the following definition:
0 dB loss in the Transmit path from TXA to the line
2 dB gain in the Receive path from the line to RXA
Refer to the Basic Box Modem diagram in the Applications section for the DAA design.
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