參數(shù)資料
型號: 73K222AL-IP
廠商: TDK Corporation
英文描述: V.22, V.21, Bell 212A, 103 Single-Chip Modem
中文描述: .22,.21,貝爾212A章,103單芯片調(diào)制解調(diào)器
文件頁數(shù): 18/28頁
文件大?。?/td> 160K
代理商: 73K222AL-IP
73K222AL
V.22, V.21, Bell 212A, 103
Single-Chip
18
DYNAMIC CHARACTERISTICS AND TIMING
(continued)
PARAMETER
CONDITION
MIN
NOM
MAX
UNIT
Carrier Detect
DPSK or FSK
Threshold
Receive data
-49
-42
dBm0
Delay Time
-70 dBm0 to -30 dBm0 STEP
15
45
ms
Hysteresis
Single tone detected
2
3.0
dB
Hold Time
-30 dBm0 to -70 dBm0 STEP
10
24
ms
Answer Tone Detector
Detect Level
Not in V.21 mode
-49.5
-42
dBm0
Delay Time
-70 dBm0 to -30 dBm0 STEP
20
45
ms
Hold Time
-30 dBm0 to -70 dBm0 STEP
10
30
ms
Detect Frequency Range
-2.5
+2.5
%
Output Smoothing Filter
10
k
Output load
TXA pin; FSK Single
Tone out for THD = -50 db
in 0.3 to 3.4 kHz
50
pF
Frequency = 76.8 kHz
-39
dBm0
Spurious Frequency Comp.
Frequency = 153.6 kHz
-45
dBm0
TXA pin Output Impedance
200
300
Clock Noise
TXA pin; 76.8 kHz
1.0
mVrms
Carrier VCO
Capture Range
Originate or Answer
-10
+10
Hz
Capture Time
-10 Hz to +10 Hz Carrier
Frequency Change Assum.
40
100
ms
Recovered Clock
Capture Range
% of frequency
center frequency
(center at 1200 Hz)
-625
+625
ppm
Data Delay Time
Analog data in at RXA pin to
receive data valid at RXD pin
30
50
ms
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