Cypress Semiconductor CYS25G0101DX-ATC Manual de usuario descargar pdf (Pagina 10)

CYS25G0101DX

Document Number: 38-02009 Rev. *K Page 10 of 17

AC Waveforms

AC Test Loads

Table 5. DC Specifications—HSTL

Parameter Description Test Conditions Min Max Unit

HSTL Outputs

OHH

Output HIGH Voltage V

= min, I

= –4.0 mA V

DDQ

– 0.4 V

OLH

Output LOW Voltage V

= min, I

= 4.0 mA 0.4 V

OSH

Output Short Circuit Current V

OUT

= 0V 100 mA

HSTL Inputs

IHH

Input HIGH Voltage V

REF

+ 0.13 V

DDQ

+ 0.3 V

ILH

Input LOW Voltage –0.3 V

REF

– 0.1 V

IHH

Input HIGH Current V

DDQ

= max, V

= V

DDQ

ILH

Input LOW Current V

DDQ

= max, V

= 0V –40

Capacitance

INH

Input Capacitance V

DDQ

= max, at f = 1 MHz 5 pF

2.0V

0.8V

3.0V

GND

2.0V

0.8V

< 1 ns < 1 ns

80%

20%

80%

20%

ICHH

3.0V

ICLL

= 1.4V

< 150 ps

80%

20%

80%

20%

IEHH

IELL

< 1.0 ns

(a) LVTTL Input Test Waveform

(b) CML Input Test Waveform

(d) LVPECL Input Test Waveform

< 1 ns < 1 ns

Input Test Waveform

= 0.75V

IHH

IHL

80%

20%

80%

20%

3.3V

OUTPUT

(a) TTL AC Test Load (b)

CML AC Test Load

R1 = 330Ω

R2 = 510Ω

(Includes fixture and

probe capacitance)

= 100Ω

≤ 10 p

1.5V

OUTPUT

AC Test Load

R1 = 100Ω

R2 = 100Ω

(Includes fixture and

probe capacitance)

≤ 7 pF

OUT+

OUT–

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 16 17

SONET OC-48 Transceiver 1
CYS25G0101DX 10

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