MPC9448 Rev 7 3/15/16

4

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MPC9448 DATASHEET

Table 6. AC Characteristics (VCC = 3.3 V ± 5%, TA = -40°C to +85°C)

(1)

1. AC characteristics apply for parallel output termination of 50

 to V

TT.

Symbol

Characteristics

Min

Typ

Max

Unit

Condition

fref

Input Frequency

0

350

MHz

fMAX

Maximum Output Frequency

0

350

MHz

VPP

Peak-to-Peak Input Voltage

PCLK

400

1000

mV

LVPECL

VCMR

(2)

2. VCMR (AC) is the crosspoint of the differential input signal. Normal AC operation is obtained when the crosspoint is within the VCMR range

and the input swing lies within the VPP (AC) specification. Violation of VCMR or VPP impacts tPLH/HL and tSK(PP).

Common Mode Range

PCLK

1.3

VCC – 0.8

V

LVPECL

tP, REF

Reference Input Pulse Width

1.4

ns

tr, tf

CCLK Input Rise/Fall Time

1.0(3)

3. Violation of the 1.0 ns maximum input rise and fall time limit will affect the device propagation delay, device-to-device skew, reference input

pulse width, output duty cycle and maximum frequency specifications.

ns

0.8 to 2.0 V

tPLH/HL

tPLH/HL

Propagation Delay

PCLK to any Q

CCLK to any Q

1.6

1.3

3.6

3.3

ns

ns

tPLZ, HZ

Output Disable Time

11

ns

tPZL, LZ

Output Enable Time

11

ns

tS

Setup Time

CCLK to CLK_STOP

PCLK to CLK_STOP

0.0

0.0

ns

ns

tH

Hold Time

CCLK to CLK_STOP

PCLK to CLK_STOP

1.0

1.5

ns

ns

tsk(O)

Output-to-Output Skew

150

ps

tsk(PP)

Device-to-Device Skew

PCLK or CCLK to any Q

2.0

ns

tSK(P)

DCQ

Output Pulse skew(4)

Using CCLK

Using PCLK

Output Duty Cycle

fQ<170 MHz

4. Output pulse skew is the absolute difference of the propagation delay times: | tpLH – tpHL |.

45

50

300

400

55

ps

ps

%

DCREF = 50%

tr, tf

Output Rise/Fall Time

0.1

1.0

ns

0.55 to 2.4 V

Table 7. DC Characteristics (VCC = 2.5 V ± 5%, TA = -40°C to +85°C)

Symbol

Characteristics

Min

Typ

Max

Unit

Condition

VIH

Input high voltage

1.7

VCC + 0.3

V

LVCMOS

VIL

Input low voltage

–0.3

0.7

V

LVCMOS

VPP

Peak-to-peak input voltage

PCLK

250

mV

LVPECL

VCMR

(1)

1. VCMR (DC) is the crosspoint of the differential input signal. Functional operation is obtained when the crosspoint is within the VCMR range

and the input swing lies within the VPP (DC) specification.

Common Mode Range

PCLK

1.0

VCC – 0.7

V

LVPECL

IIN

Input current(2)

2. Input pull-up / pull-down resistors influence input current.

300

A

VIN = GND or VIN = VCC

VOH

Output High Voltage

1.8

V

IOH = –15 mA

(3)

3. The MPC9448 is capable of driving 50

 transmission lines on the incident edge. Each output drives one 50  parallel terminated

transmission line to a termination voltage of VTT. Alternatively, the device drives one 50  series terminated transmission lines at

VCC = 2.5 V.

VOL

Output Low Voltage

0.6

V

IOL= 15 mA

(3)

ZOUT

Output impedance

19



ICCQ

(4)

4. ICCQ is the DC current consumption of the device with all outputs open and the input in its default state or open.

Maximum Quiescent Supply Current

2.0

mA

All VCC Pins