ak2548 AKM Semiconductor, Inc., ak2548 Datasheet - Page 11
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ak2548
Manufacturer Part Number
ak2548
Description
7 Channel E1 Transceiver - Asahi Kasei Microsystems
Manufacturer
AKM Semiconductor, Inc.
Datasheet
1.AK2548.pdf
(30 pages)
- Current page: 11 of 30
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ASAHI KASEI
TRANSMITTER
Transmitter characteristics are guaranteed on the conditions as shown below.
VDD=3.3V±5%,VSS,GND=0V,Ta=-40~85ºC, MCLK frequency:2.048MHz±100ppm, 32.768MHz±100ppm
Output Pulse Shape
Output Pulse Amplitude 75
Pulse Amplitude for a
space
Output Pulse Imbalance amplitudes
Output Jitter
Return Loss
51kHz-102kHz
102kHz-2.048MHz
2.048MHz-3.072MHz
Note1: Turns Ratio, DCR and external resistors are recommended value. (P27)
C0028-E-00
Pulse Mask Template (G.703)
Parameter
V = 100%
50%
0%
120
75
120
widths
20Hz-100kHz
Mask of the pulse at the 2048 kbit/s interface
Note – V corresponds to the nominal peak value.
Symbol
(244 – 25)
(244 + 244)
(244 + 25)
(244 – 50)
269 ns
194 ns
219 ns
244 ns
488 ns
-0.237
2.14
11
Min
-0.3
2.7
15
11
-4
-4
9
2. 37
Typ
3.0
0. 237
Max
2.60
0.05
3.3
0.3
4
4
Nominal pulse
Units
UIpp
V
V
V
V
dB
dB
dB
%
%
0p
0p
0p
0p
G.703
Note 1
Note 1
Condition
[AK2548]
1999/9
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