SA676DK 查看數據表（PDF） - Philips Electronics

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SA676DK

Low-voltage mixer FM IF system

Philips Electronics 

Philips Semiconductors

Low-voltage mixer FM IF system

Product specification

SA676

ABSOLUTE MAXIMUM RATINGS

SYMBOL

PARAMETER

VCC

TSTG

TA

θJA

Single supply voltage

Storage temperature range

Operating ambient temperature range

Thermal impedance

DK package

RATING

7

–65 to +150

–40 to +85

117

UNITS

V

°C

°C

°C/W

DC ELECTRICAL CHARACTERISTICS

VCC = +3V, TA = 25°C; unless otherwise stated.

SYMBOL

PARAMETER

VCC

Power supply voltage range

ICC

DC current drain

TEST CONDITIONS

LIMITS

SA676

MIN

TYP MAX

2.7

7.0

3.5

5.0

UNITS

V

mA

AC ELECTRICAL CHARACTERISTICS

TA = 25°C; VCC = +3V, unless otherwise stated. RF frequency = 45MHz; +14.5dBV RF input step-up; IF frequency = 455kHz; R17 = 2.4kΩ

and R18 = 3.3kΩ; RF level = –45dBm; FM modulation = 1kHz with ±5kHz peak deviation. Audio output with de-emphasis filter and C-message

weighted filter. Test circuit Figure 3. The parameters listed below are tested using automatic test equipment to assure consistent electrical

characteristics. The limits do not represent the ultimate performance limits of the device. Use of an optimized RF layout will improve many of

the listed parameters.

SYMBOL

PARAMETER

TEST CONDITIONS

LIMITS

MIN

TYP MAX

UNITS

Mixer/Osc section (ext LO = 220mVRMS)

fIN

Input signal frequency

fOSC

Crystal oscillator frequency

Noise figure at 45MHz

100

MHz

100

MHz

7.0

dB

Third–order input intercept point (50Ω

source)

f1 = 45.0; f2 = 45.06MHz

Input RF level = –52dBm

–10

dBm

Conversion power gain

Matched 14.5dBV step–up

10

17

dB

50Ω source

+2.5

dB

RF input resistance

Single–ended input

8

kΩ

RF input capacitance

3.0

4.0

pF

Mixer output resistance

(Pin 20)

1.25

1.5

kΩ

IF section

IF amp gain

50Ω source

44

dB

Limiter gain

50Ω source

58

dB

AM rejection

30% AM 1kHz

50

dB

Audio level

Gain of two

60

120

mV

SINAD sensitivity

IF level –110dBm

17

dB

THD Total harmonic distortion

–55

dB

S/N

Signal–to–noise ratio

IF RSSI output, R9 = 2kΩ1

No modulation for noise

IF level = –110dBm

IF level = –50dBm

60

dB

0.5

.90

V

1.7

2.2

V

RSSI range

70

dB

IF input impedance

Pin 18

1.3

1.5

kΩ

IF output impedance

Pin 16

0.3

kΩ

Limiter input impedance

Pin 14

1.3

1.5

kΩ

Limiter output impedance

Pin 11

0.3

kΩ

Limiter output voltage

Pin 11

130

mVRMS

1993 Dec 15

6–130

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