Philips Semiconductors RF Communications Products

Product specification

SA608

Low voltage high performance mixer FM IF system

November 3, 1992

6

MINI–CIRCUIT ZSC2–1B

AUDIO

C14

IFT1

C10

C9

C8

C7

C6

X1

R7

30.5

L2

SW3

SW4

SW1

VCC

EXT.

LOC

OSC

44.545

45MHZ

R3

R1

R2

SW2

C3

C4

R4

51.1

C5

C2

C1

L1

R6

178

R8

39.2

”C” WEIGHTED

AUDIO

MEASUREMENT

CIRCUIT

45.06

MHZ

50.5

2430

3880

96.5

32.6

71.5

C24

C22

C20

C19

C18

C15

C16

C17

FLT2

SW7

SW6

SW5

SW8

SW9

C23

C21

R17

2.4k

FLT1

–

25dB,

1500/50

–

10dB,

50/50

–

29dB,

929/50

–

10.6dB,

50/50

–

36dB,

156k/50

100pF NPO Ceramic

390pF NPO Ceramic

22pF NPO Ceramic

1nF Ceramic

10.0pF NPO Ceramic

10pF NPO Ceramic

100nF +10% Monolithic Ceramic

100nF +10% Monolithic Ceramic

100nF +10% Monolithic Ceramic

100nF +10% Monolithic Ceramic

2.2

µF

100nF +10% Monolithic Ceramic

10

C21

C23

C26

Flt 1

Flt 2

IFT 1

L1

L2

X1

R9

R19

R10

R11

100nF +10% Monolithic Ceramic

100nF +10% Monolithic Ceramic

10k

Ω +1%

10k

Ω +1%

16k

Ω +5% 1/4W Carbon Composition

2k

Ω +1% 1/4W Metal Film

44.545MHz Crystal ICM4712701

0.8

Toko 292CNS–T1038Z

455kHz (Ce = 180pF) Toko RMC–2A6597H

Ceramic Filter Murata SFG455A3 or equiv

Ceramic Filter Murata SFG455A3 or equiv

0.1

µF +10% Monolithic Ceramic

147–160nH Coilcraft UNI–10/142–04J08S

C1

C2

C5

C6

C7

C8

C9

C10

C12

C14

C15

C17

C18

Automatic Test Circuit Component List

1.3k

51.7

71.5

96.5

32.8

51.5

R14

5k

Ω +1%

R9

DEEMPHASIS

FILTER

SW11

R10

R11

C12

C25

100nF +10% Monolithic Ceramic

R17

2.4k

Ω +5% 1/4W Carbon Composition

Figure 1. SA607 45MHz Test Circuit (Relays as shown)

R19

16k

R18

3.3k

C26

R18

3.3k

Ω +5% 1/4W Carbon Composition

C27

2.2

µF

FREQ

CHECK

*NOTE: This value can be reduced when a battery is the power source.

RSSI

IF

AMP

MIXER

QUAD

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

OSCILLATOR

VREG

+

–

+

–

LIMITER