HDMP-1512 Просмотр технического описания (PDF) - HP => Agilent Technologies
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HDMP-1512 Datasheet PDF : 26 Pages
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HDMP-1512 (Tx), HDMP-1514 (Rx)
DC Electrical Specifications
TC = 0°C to +85°C, VCC = 4.5 V to 5.5 V
Symbol
Parameter
VIH,TTL
VIL,TTL
VOH,TTL
VOL,TTL
ICC,Tx
ICC,Rx
PSTH
TTL Input High Voltage Level, Guaranteed high signal for
all inputs, IIH = 100 µA
TTL Input Low Voltage Level, Guaranteed low signal for all
inputs, IIL = -1mA
TTL Output High Voltage Level, IOH = 1 mA
TTL Output Low Voltage Level, IOL = -1 mA
Transmitter VCC Supply Current, without laser biased
Receiver VCC Supply Current, with TTL output data 50% 1’s
Power Supervisor DC Threshold Voltage
Unit Min. Typ. Max.
V
2
5
V
0
0.8
V 2.4
5
V
0
0.6
mA
320 450
mA
400 550
V 4.0 4.25 4.5
HDMP-1512 (Tx)
Laser Driver Characteristics
TC = 0°C to +85°C, VCC = 4.5 V to 5.5 V
Symbol
Parameter
Ipb
Laser Diode Prebias Current Set Range (Using
External pnp Transistor, P1 in Figure 3, with
β > 100)
Imod
Laser Diode Modulation Current Set Range
(Peak to Peak) into 25 Ω Load
tr,LZOUT
tf,LZOUT
Laser Driver Rise Time, 25 Ω load, 20% to 80%
Laser Driver Fall Time, 25 Ω load, 20% to 80%
tLZTC
Time for VLZTC to Discharge to Fault Threshold
when Terminated with C = 0.1 µF
VLZCSE LZCSE Reference Voltage
VLZBTP Bandgap Test Point Reference Voltage
VLZMDF Laser Monitor Diode Feedback Voltage
ADCOA
Laser Driver DC Operational Amplifier Gain,
Unloaded, see Figure 3
f-3dB
Laser Driver DC Operational Amplifier Bandwidth
VLZDC_OP Recommended LZDC Operating Range, Laser Diode
DC Bias Control
VLZDC_DCL LZDC Laser DC Bias Low Voltage Setting
VLZDC_DCH LZDC Laser DC Bias High Voltage Setting
ILZDC_L LZDC Load Current, over VLZDC_OP
ZLZDC_ACO LZDC AC Output Impedance
ZLZMDF_ACI LZMDF AC Input Impedance
ILZMDF LZMDF Input Current
Units Min.
mA
Typ.
20
Max.
130
mA
25
psec
325
psec
325
msec
2
V
0.4
V
2.3
V
1.85
dB
35
MHz
300
V VCC - 1.8
VCC - 0.75
V
VCC - 2.0
V VCC - 0.6
mA
1.3
Ω
400
Ω
10,000
µA
6
15
665
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