SA639 データシートの表示（PDF） - Philips Electronics

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SA639

Low voltage mixer FM IF system with filter amplifier and data switch

Philips Electronics 

Philips Semiconductors

Low voltage mixer FM IF system with filter amplifier

and data switch

Product specification

SA639

TYPICAL PERFORMANCE CHARACTERISTICS (continued)

Relative Data Output Level, THD, Noise and

AM Rejection vs Temperature

RF = 110MHz, Level = -50dBm

Dev. = 288kHz, LO = 119.8MHz, -14dBm, VCC = 3V

20

0

Data

-20

AM Rej

-40

THD

-60

-80

NOISE

-100

-40

0

25

70

85

TEMPERATURE (°C)

SA639 Receiver RF Performance

RF = 110kHz, LO = 119.8MHz, Data = 430.76mVP-P

VCC = 3V, T = 25°C, 576kHz sine

10

1.3

0

Data

1.2

-10

RSSI

1.1

-20

1

-30

THD+N

0.9

-40

0.8

-50

AM REJ

0.7

-60

0.6

-70

0.5

NOISE

-80

0.4

-90

0.3

RF INPUT LEVEL (dBm)

RSSI vs RF Level and Temperature

VCC = 3V

2

1.8

1.6

1.4

1.2

-40°C

1

25°C

0.8

85°C

0.6

0.4

0.2

0

-110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10

RF LEVEL (dBm)

RSSI vs RF Level and VCC

Temperature = 25°C

2

1.8

1.6

1.4

VCC = 5.5V

1.2

1

VCC = 3V

0.8

VCC = 2.7V

0.6

0.4

0.2

0

-110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10

RF LEVEL (dBm)

Data Output DC Voltage vs Temperature and VCC

2.3

2.2

2.1

2

VCC = 5.5V

1.9

1.8

VCC = 3V

1.7

1.6

VCC = 2.7V

1.5

1.4

1.3

-40

0

25

70

85

TEMPERATURE (°C)

Data Output AC Voltage vs Temperature and VCC

700

650

600

550

VCC = 5.5V

500

VCC = 3V

450

VCC = 2.7V

400

350

300

250

200

-40

0

25

70

TEMPERATURE (°C)

85

SR00036

Figure 7. Typical Performance Characteristics (cont.)

1998 Feb 10

11

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