HMC1010LP4E データシートの表示（PDF） - Hittite Microwave

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HMC1010LP4E

RMS POWER DETECTOR DC - 3.9 GHz

Hittite Microwave 

v03.0511

Pin Descriptions (Continued)

Pin Number

Function

Description

HMC1010LP4E

RMS POWER DETECTOR

DC - 3.9 GHz

Interface Schematic

11

9, 10

COFSA,

COFSB

High pass filter capacitor input. Connect a

capacitor between COFSA and COFSB to

determine 3 dB point of input signal high-pass filter.

14

VSET

Setpoint input for controller mode. Allows change

of output slope resulting in output power leveling.

15

RMSOUT

Logarithmic output that provides an

indication of mean square input power.

17 - 20

SCI1 - SCI4

Digitally Programmable Integration Bandwidth

Control. Input pins that control the internal

integration time constant for RMS calculation. SCI4

is the most significant bit. Set V>0.8xVcc to enable

and V<0.2xVcc to disable (active high). Shortest

integration time is for SCI=0000, allowed longest

integration time is for SCI=1100 (1101, 1110 and

1111 SCI settings are forbidden states). Each step

changes the integration time by 1 octave.

11 - 11

For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824

Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com

Application Support: Phone: 978-250-3343 or apps@hittite.com

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