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PDF AK2540 Data sheet ( Hoja de datos )
| Número de pieza | AK2540 | |
| Descripción | Quad T1 Transceiver | |
| Fabricantes | Asahi Kasei Microsystems | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AK2540 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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ASAHI KASEI
[AK2540]
AK2540
Quad T1 Transceiver
FEATURE
- 4ch short haul T1 transceiver with jitter attenuator
- Jitter Tolerance: Compliant with GR-499 Category I,II and TR 62411
- Transmitter Pulse Shape: Compliant with GR-499 and ANSI T1.102 (1993)
- Loss of Signal Detection
- Local/Remote Loopback Mode
- Driver Failure Monitor
- Current limiter in transmit drivers for short circuits protection
- Hardware/Host Control Mode
- Single 3.3V±5% or 5.0V±5% Operation
- Low Power Consumption
- Package: 144LQFP
BLOCK DIAGRAM
TCLK1
TPOS1
TNEG1
RCLK1
RPOS1
RNEG1
RCLK2-4
RPOS2-4
RNEG2-4
TCLK2-4
TPOS2-4
TNEG2-4
TRANSCEIVER 1
JITTER
ATT
TRANSCEIVER 2-4
DFM
TAOS
PULSE
SHAPER
CLOCK
&DATA
RECOVERY
LOS
CONTROL
CLKGEN
Quad T1 Transceiver Block Diagram
DFM1
TTIP1
TRING1
RTIP1
RRING1
LOS1
DFM2-4
TTIP2-4
TRING2-4
RTIP2-4
RRING2-4
LOS2-4
MCLK
MCLKSEL
MS0012-E-00
1
2000/1
1 page  
ASAHI KASEI
[AK2540]
Pin #
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
Pin Name
NC
RAVSS
RAVDD
NC
JASELR
JASELT
NC
RCLK2
RNEG2
RPOS2
LOS2
NC
TCLK2
TNEG2
TPOS2
NC
DAVSS1
DVDD
DVSS
NC
TAVSS2
TAVDD2
NC
NC
AIS2
DFM2
RCLK1
NC
RNEG1
RPOS1
LOS1
TCLK1
TNEG1
TPOS1
AIS1
DFM1
I/O Pin Type
I Power
I Power
I CMOS
I CMOS
O CMOS
O CMOS
O CMOS
I CMOS
I CMOS
I CMOS
I CMOS
I Power
I Power
I Power
I Power
I Power
I CMOS
O CMOS
O CMOS
O CMOS
O CMOS
O CMOS
I CMOS
I CMOS
I CMOS
I CMOS
O CMOS
AC Load
≤15pF
≤15pF
≤15pF
≤15pF
≤15pF
≤15pF
≤15pF
≤15pF
≤15pF
≤15pF
DC Load
Comments
Note2)
Note2)
Note2)
Note2)
MS0012-E-00
5
2000/1
5 Page 
ASAHI KASEI
[AK2540]
TRANSMITTER
Transmitter characteristics are guaranteed under the conditions shown below.
VDD=3.3V±5% or 5.0V±5%, VSS=0V, GND=0V, Ta=-40 - 85°C,
MCLK frequency: 1.544MHz±100ppm, 24.704MHz±100ppm
Parameter
Symbol Min Typ Max Units
Conditions
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
Consecutive Zeros before DPM Alarm
320
Note 1: Measured at the DSX terminated with 100ohm.
Note 2: Turns Ratio and DCR of transmission transformer are recommended value.
Note 3: Measured in a 2kHz bandwidth about the specified frequency. Transmit all mark pattern.
Note 4: Referenced 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
Time, in Unit Intervals
1
1.5
MS0012-E-00
11
2000/1
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet AK2540.PDF ] | |
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