AK2546 Datasheet, PDF (11/27 Pages) Asahi Kasei Microsystems – 7 channel T1 Transceiver

ASAHI KASEI
[AK2546]
TRANSMITTER
Transmitter characteristics are guaranteed on the conditions as shown below.
VDD=3.3V±5%, VSS, GND=0V,Ta=-40~85°C,
MCLK frequency: 1.544MHz±100ppm, 24.704MHz±100ppm
Parameter
Symbol Min Typ Max Units
Condition
Output Pulse Shape
GR-499,Note1
Output Pulse Amplitude
2.5 3.0 3.5 V0p Note1, Note2
Output Pulse Imbalance
0.4 dB
Output Jitter
10Hz-8kHz
0.02 UIpp
10Hz-40kHz
0.025
8kHz-40kHz
0.025
Broad Band
0.05
Power Levels@772kHz
12.6 15 17.9 dBm Note3
Power Levels @1.544MHz
-29 dB Note3, Note4
Note1: Measured at the DSX terminated with 100Ω.
Note2: Amplitude at the pulse center to normalize to unity.
Turns Ratio and DCR are recommended value.
Note3: Measured in a 2kHz band width around the specified frequency. Transmit all mark pattern.
Note4: Compare to the power at 772kHz
ISOLATED PULSE MASK (GR-499)
Normalized Amplitude
1.5
1
0.5
0
-0.5
-1
-1
-0.5
0
0.5
1
1.5
Time, in Unit Intervals
C0019-E-01
11
1999/9