參數(shù)資料
型號(hào): 73K324L
廠商: Electronic Theatre Controls, Inc.
英文描述: EMBASE
中文描述: 國(guó)際電話電報(bào)諮詢委員會(huì)V.22bis,.22,.21,.23,貝爾212A章單芯片調(diào)制解調(diào)器
文件頁數(shù): 21/31頁
文件大小: 183K
代理商: 73K324L
73K324L
CCITT V.22bis, V.22, V.21, V.23, Bell 212A
Single-Chip Modem
21
DYNAMIC CHARACTERISTICS AND TIMING
(continued)
PARAMETER
CONDITION
MIN
NOM
MAX
UNIT
Output Smoothing Filter
Output Impedance
TXA pin
200
300
k
pF
10
Output Load
TXA pin; FSK Single
Tone out for THD = -50 Db
in 0.3 to 3.4 kHz range
50
4 kHz, Guard Tones off
10 kHz, Guard Tones off
-35
-55
dBm0
dBm0
Maximum Transmitted Energy
12 kHz, Guard Tones off
-65
dBm0
Anti Alias Low Pass Filter
Scrambled data at 2400 bit/s in
opposite band
Sinusoids out of band
-14
dBm
Maximum allowed Out-of-Band
Signal Energy (Defines Hybrid
Trans-Hybrid Loss requirements
-9
dBm
Transmit Attenuator
Range of Transmit Level
1111-0000
Default ATT = 0100 (-10 dBm0)
-21
-6
dBm0
Step Accuracy
Clock Noise
-0.15
+0.15
dB
TXA pin; 153.6 kHz
1.5
mV rms
Carrier Offset
Capture Range
Recovered Clock
Originate or Answer
±5
Hz
Capture Range
% of data rate originate or
answer
-.02
+.02
%
Guard Tone Generator
Tone Accuracy
550 Hz
1800 Hz
+1.2
-0.8
%
%
Tone Level
550 Hz
-4.5
-3.0
-1.5
dB
(Below QAM/DPSK Output)
1800 Hz
550 or 1800 Hz
-7.5
-6.1
-4.5
-50
dB
dB
Harmonic Distortion
(700 to 2900 Hz)
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