VSC7969 データシートの表示（PDF） - Vitesse Semiconductor

部品番号

コンポーネント説明

メーカー

VSC7969

3.125Gb/s Integrated Transimpedance and Limiting Amplifier with Signal Detect

Vitesse Semiconductor 

VITESSE

SEMICONDUCTOR CORPORATION

3.125Gb/s Integrated Transimpedance

and Limiting Amplifier with Signal Detect

Advance Product Information

VSC7969

Electrical Characteristics

Table 1: AC Specifications

Symbol

∆IPH

IPHS-AVG

IPHS-PEAK

∆VOUT-SE

∆VOUT-DIFF

tR, tF

ZT(1)

∆ZT(1)

BW

FL

ZO

PSRR

INOISE

CPD

SDH

SDA-OPEN

SDD-OPEN

SDA-SHORT

SDD-SHORT

SDHIGH

SDLOW

Parameter

Min

Input Photocurrent Swing

Average Photocurrent Sensitivity

Peak Input Photocurrent Sensitivity

Single-Ended Output Voltage

Amplitude

200

Differential Output Voltage Amplitude 400

Rise and Fall Time

Transimpedance Gain

20k

Ripple in Passband Transimpedance

Upper -3dB Bandwidth

2.2

Lower -3dB Cutoff Frequency

Output Impedance

Power Supply Rejection Ratio

Input-Referred rms Noise Current

Photodetector Capacitance

0.4

Signal Detect Hysterisis

1

Signal Detect Assertion Level

3

Signal Detect Deasseration Level

1.0

Signal Detect Asseration Level

6

Signal Detect Deasseration Level

2.0

Signal Detect HIGH Logic Level

Signal Detect LOW Logic Level

Typ

4

8

250

500

60

27k

1

2.5

50

TBD

500

0.6

2

5

2.2

10

4.4

VCCS

- 0.3

0.5

Max

2.2

300

600

100

40k

3.0

100

0.8

4

9

3.0

18

6.0

0.8

Units

Conditions

mA

Peak-to-peak AC current

amplitude

-23dBm average optical power

µA with a detector responsitivity of

0.8A/W.

-23dBm average optical power

µA with a detector responsitivity of

0.8A/W.

mV

Single-ended peak-to-peak

measurement, IIN >20µA.

mV

Differential peak-to-peak

measurement, IIN >20µA.

ps

At 2.2mAp-p input photocurrent

swing. 20% to 80%.

Ω Differential measurement

dB

Modulation frequency between FL

and BW

GHz

Referenced to 10MHz,

CPD = 0.6pF

Referenced to 10MHz, CPD =

kHz 0.6pF with no external

components

Ω Single-ended

nA 30kHz to 2.5GHz

pF Bias voltage on detector at 2.0V

dB Electrical measurement on SD pin

µA

Average photocurrent with SD

open.

µA

Average photocurrent with SD

open.

µA

Average photocurrent with SD

shorted to ground.

µA

Average photocurrent with SD

shorted to ground.

V

V

Page 2

© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012

Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com

Internet: www.vitesse.com

G52355-0, Rev 2.0

02/09/01

Share Link: