UPC8002 datasheet(22/32 Pages) NEC

Part #	UPC8002

Description	SECOND MIXER IF AMPLIFIER FOR DIGITAL CORDLESS TELEPHONES

PDF	32 Pages

Scroll/Zoom	100%

Manufacturer	NEC [NEC]

Direct Link	http://www.nec.com/

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22 / 32 page

µPC8002

Test Circuit Example 6. (Power-on rise time)

Mixer section : Time until the difference between the local input pin power-on and

power-off voltage reaches 90 %

IF section

: Time until RSSI output is within

±10 % of the power-on value.

RSSI OUT

10 pF

Storage

oscilloscope 2

LO IN

Storage

oscilloscope 1

Input signal from SG

1 SEC

50 SEC

3 V

0 V

Remark

Power-on input voltage (VPO) rise time: 10 ns

Caution

The 10 pF capacitor value for RSSI OUT includes all the capacitances (board, pattern, etc.)

applied to the pin. Ensure that the recommended load condition (10 pF) is not exceeded.

Test Circuit Example 7. (Power-off fall time)

Storage

oscilloscope

Input signal from SG

1 SEC

50 SEC

VCC (IF OUT)

VCC (IF)

Current probe

VCC (MIX)

3 V

0 V

VCC

UPC8002 Datasheet(PDF) 22 Page - NEC