UPC8190K-EVAL【PDF 3/6 页】EVAL BOARD FOR UPC8190K

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UPC8190K

PIN FUNCTIONS (Pin Voltage is measured at V CC = 3.0 V)

Applied

Pin

Functions and Applications

Internal Equivalent Circuits

Pin

No.

Pin

Name

Voltage

(V)

Voltage

(V)

1

Vcont

0 to 3.0

-

Gain control pin of AGC amplifier.

V CC

Variable gains are available in accordance

with applied voltage.

54 k

12 k

1

5k

2

N.C.

-

-

Non connection.

19

This pin is not connected to internal circuit.

This pin should be opened or grounded.

—

3

LO

-

-

Local signal input pin of I/Q demodulator.

V CC

Input frequency is 760 MHz.

3

4

LOb

-

-

Bypass pin of local signal input for I/Q

demodulator.

4

In the case of single local input, this pin must be

decoupled with capacitor ex. 100 to 1 000 pF.

50

GND

50

5

6

GND

(Demod.)

0

-

Ground pin of I/Q demodulator.

This pin should be grounded with minimum

inductance.

Form the ground pattern as widely as possible to

minimize ground impeadance.

7

Qb

-

-

I/Q/Ib/Qb signal output pins.

V CC

8.5 k

8

Q

-

-

Each pin is an emitter follower.

9

Ib

-

-

Each of Ib and Qb is differential output of I and Q.

7

8

9

10

10

I

-

-

Recommendable load impedance is 10 to 20 k ? .

GND

11

VCC

2.7 to 3.3

-

Supply voltage pin of I/Q demodulator

—

(Demod.)

(phase shifter + I/Q Mixer).

12

TEST 1

0

-

TEST pin.

In actual use, this pin should be grounded.

—

13

TEST 2

0

-

14

GND

0

-

Ground pin of AGC amplifier and

—

18

(AGC,

REG.)

internal regulator.

This pin should be grounded with

minimum inductance.

Form the ground pattern as widely as

possible to minimize ground impedance.

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