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978-250-3343 tel • 978-250-3373 fax • Order On-line at www.hittite.com

Application Support: apps@hittite.com

HMC960LP4E

v00.0211

DC - 100 MHz DUAL DigitAL

VAriAbLe gAin AMpLifier with DriVer

DVDD = 5 V ±10%, GND = 0 V

table 6. Main Spi timing Characteristics

Parameter

Conditions

Min

Typ

Max

Units

SDI to SCK Setup Time

8

nsec

SDI to SCK Hold Time

8

nsec

10

nsec

SCK Low Duration

10

nsec

SEN Low Duration

20

nsec

SEN High Duration

20

nsec

8

nsec

8

nsec

[1] The SPI is relatively insensitive to the duty cycle of SCK.

respected.

[3] Typical load to SDO is 10 pF, maximum 20 pF

parallel port interface

The HMC960LP4E features a seven bit parallel port to aid in real time gain selection. The dynamic performance of

the parallel port is specified below.

table 7. gain Control parallel port timing Characteristics

Parameter

Conditions

Min.

Typ.

Max.

Units

f

SSP

Gain control switching rate

20

MHz

t

SSP

Allowable skew between GC[6:0] input transitions

10

nsec