UAA3220 查看數據表（PDF） - Philips Electronics

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UAA3220

Frequency Shift Keying (FSK)/Amplitude Shift Keying (ASK) receiver

Philips Electronics 

Philips Semiconductors

Frequency Shift Keying (FSK)/Amplitude

Shift Keying (ASK) receiver

Product specification

UAA3220TS

TEST INFORMATION

Tuning procedures

TUNING PROCEDURE FOR AC TESTS

1. Turn on the signal generator (fi(RF) = 433.92 or 868.35 MHz; no modulation; RF input level = −50 dBm).

2. Tune first C50 (multiplier tank circuit), second C11 (RF stage input) to obtain a peak IF voltage at pin FA.

TUNING PROCEDURE FOR ASK RECEPTION

1. Make sure that pin DEMO1 is short circuited to ground.

2. Turn on ASK modulation and check that data is appearing on the DATA output pin and proceed with the AC tests.

TUNING PROCEDURE FOR FSK RECEPTION

1. Make sure that pins DEMO1 and DEMO2 are connected by the LC tank circuit.

2. Turn on FSK modulation (∆f = 10 kHz; RF input level = −103 dBm).

3. Tune C61 (or L60) (phase shifter LC tank circuit) to obtain a peak LF voltage at pin CPC.

4. Check that data is appearing on pin DATA and proceed with the AC tests.

AC test conditions

Table 2 Test signals

The reference signal level Pref for the following tests is defined as the minimum input level in dBm to give a

BER ≤ 3 × 10−2 (e.g. 60 bit errors per second for 2000 bits/s). All test signal levels refer to 50 Ω load condition.

TEST

SIGNAL

1

2

3

4

FREQUENCY

(MHz)

433.92/868.35

433.92/868.35

433.92/868.35

433.82/868.35

DATA SIGNAL

1000 Hz square wave

1000 Hz square wave

−

−

MODULATION

AM (ASK)

FM (FSK)

no modulation

no modulation

MODULATION

INDEX

100%

−

−

−

FREQUENCY

DEVIATION

−

10 kHz

−

−

1999 Jan 22

15

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