cxa1685m Sony Electronics, cxa1685m Datasheet

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cxa1685m

Manufacturer Part Number
cxa1685m
Description
High-speed Transimpedance Amplifier
Manufacturer
Sony Electronics
Datasheet
Description
amplifier, particularly suitable for fiber-optic system.
CXA1685M is fabricated using high-speed bipolar
process.
Features
• High transimpedance:
• Wide band width (–3dB): Q 177MHz (Typ.)
• Maximum input current: 1mA
• Low noise:
Applications
• SONET/SDH: 155Mb/s
• Fiber channel: 133Mb/s
• FDDI:
CXA1685M
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
High-Speed Transimpedance Amplifier
is
125Mb/s
a
low
Q 11.2kΩ (Typ.)
Q 10.8kΩ (Typ.)
Q 157MHz (Typ.)
1.7pA/√ Hz (Typ.)
noise
transimpedance
– 1 –
Absolute Maximum Ratings
• Supply voltage
• Minimum input voltage V
• Input current
• Output current
• Storage temperature
Recommended Operating Conditions
• DC power supply voltage
• Operating ambient temperature
Structure
(Q/Q) (Continuous)
Bipolar silicon monolithic IC
(Surge)
CXA1685M
8 pin SOP (Plastic)
V
I
I
Tstg
V
Ta
IN
O
CC
IN
CC
– V
– V
EE
EE
–0.3 to +7.0 V
–65 to +150 °C
4.75 to 5.46 V
–1 to +1 mA
0 to +85
0 to 100 mA
0 to 50
V
EE
E94X22A8Y
mA
°C
V

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cxa1685m Summary of contents

Page 1

... High-Speed Transimpedance Amplifier Description CXA1685M is a low noise amplifier, particularly suitable for fiber-optic system. CXA1685M is fabricated using high-speed bipolar process. Features • High transimpedance: Q 11.2kΩ (Typ.) Q 10.8kΩ (Typ.) • Wide band width (–3dB): Q 177MHz (Typ.) Q 157MHz (Typ.) • Maximum input current: 1mA • ...

Page 2

... –5.46 to –4.75V +85°C) EE Min. Typ. Max. –10.0 –15.3 11.2 14.8 6.6 14.3 10.8 6.2 +40 +1000 – 2 1 –5.46 to –4.75V +85°C) EE Min. Typ. Max. 113 177 157 109 1.7 Z CXA1685M Unit mA kΩ µ Unit pA/√ HZ ...

Page 3

... The internal resistor of the output pin does not have the capability of drive (R resistors must be connected. The resistance value is shown in application circuit 0.1µ 1.0µ – 3 – 0.1µ 620 1.3k = 10kΩ). The terminal L CXA1685M ...

Page 4

... I [µA] IN – 5.0V 25° f–3dB = 177MHz Q Output 1.0G 0 – 5.0V 25° 80MHz 115.900ns f = 155Mbps 800 1000 0 – 4 – 5dB/div f–3dB = 157MHz 500M Q Output f = 155Mbps IN 200 400 600 800 I [µA] IN CXA1685M 1.0G 1000 ...

Page 5

... – 5. – 5. – [°C] f–3dBQ – – 5. – – [° 85° 27° –40°C 50 100 150 I [µA] IN CXA1685M 100 = 4.7V = 5.5V 100 200 ...

Page 6

... Ta = 25°C –3 –3.2 –3.4 –3.6 –3.8 –4 –4.8 –4.6 –50 – 25°C –1.8 –2 –2.2 –2.4 –2.6 –2.8 –3 –4.8 –4.6 –50 –25 – 6 – CXA1685M –5. 100 Ta [° –5. 100 Ta [° ...

Page 7

... Test Circuit (Ta = 25° –5.0V) EE Signal Generator ATT –40dB Tracking Generator 620 2p 0.1µ 1µ 100 0.1µ 680p 2p 1. – 7 – CXA1685M Spectrum Analyzer/ Oscilloscope ...

Page 8

... This product uses S-PdPPF (Sony Spec.-Palladium Pre-Plated Lead Frame). 8PIN SOP (PLASTIC 1.27 0. 0.4 ± 0.03 DETAIL B : PALLADIUM PACKAGE STRUCTURE PACKAGE MATERIAL LEAD TREATMENT SOP-8P-L03 SOP008-P-0225 LEAD MATERIAL PACKAGE MASS – 8 – + 0.4 1.25 – 0.15 0.10 + 0.15 0.1 – 0.1 0° to 10° DETAILA EPOXY RESIN SOLDER/PALLADIUM PLATING 42/COPPER ALLOY 0.1g CXA1685M ...

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