MC13175 データシートの表示（PDF） - Motorola => Freescale

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MC13175

UHF FM/AM TRANSMITTER

Motorola => Freescale 

MC13175 MC13176

Figure 18. 320 MHz MC13176D FM Transmitter

Osc

Tank

1

Coilcraft

146–04J08

2

3

0.146µ

VCC = 3.8 to

3.3 Vdc

4

0.1µ

0.47µ

130k 620

9.1k 15k

1.0k

2N4402

5

(2)

VEE

6

18k

7

33k

100k

8

RF Level Adjust

1.1k

16

0.047µ

15

5.0k

VCC

CW

(1)

14

SMA

50Ω

13

510p

f/32

RFC1 (3)

12

VCC

11

27k

VCC

10

0.47µ

9

VCC

RF Output

to Antenna

Data Input

51p

(1.6 Vp–p)

51p

220p

6.8 (4)

Crystal

Fundamental

(5)

10 MHz

NOTES: 1. 50 Ω coaxial balun, 2 inches long.

2. Pins 5, 10 and 15 are grounds and connnected to VEE which is the component’s side ground plane.

These pins must be decoupled to VCC; decoupling capacitors should be placed as close as possible to the pins.

3. RFC1 is 180 nH Coilcraft surface mount inductor or 190 nH Coilcraft 146–05J08.

4. Recommended source is a Coilcraft “slot seven” 7.0 mm tuneable inductor, part #7M3–682.

5. The crystal is a parallel resonant, fundamental mode calibrated with 32 pF load capacitance.

Figure 19. 320 MHz NBFM Transmitter

RF Level Adjust

Osc

Tank

1

Coilcraft

146–04J08

2

3

0.146µ

4

VCC

0.1µ

4700p

130k 6.2k

9.1k 15k

1.0k

2N4402

5

(2)

VEE

6

15k

7

33k

8

1.0k

5.0k

16

VCC

0.047µ

15

CW

(1)

14

SMA

UT–034

RF Output

to Antenna

13

470p

f/32

RFC1 (3)

12

VCC (3.6 Vdc – Lithium Battery)

11

27k

VCC

10

0.47µ

9

VCC RFC2

VCC

External

Loop Amp

100p

10p

(4)

180p

(6)

RFC3

Crystal

Fundamental

10MHz

(5) MMBV432L

NOTES: 1. 50 Ω coaxial balun, 2 inches long.

2. Pins 5, 10 and 15 are grounds and connnected to VEE which is the component’s side ground plane. These

pins must be decoupled to VCC; decoupling capacitors should be placed as close as possible to the pins.

3. RFC1 is 180 nH Coilcraft surface mount inductor.

4. RFC2 and RFC3 are high impedance crystal frequency of 10 MHz; 8.2 µH molded inductor gives XL > 1000 Ω..

5. A single varactor like the MV2105 may be used whereby RFC2 is not needed.

6. The crystal is a parallel resonant, fundamental mode calibrated with 32 pF load capacitance.

1.0k

10µ

+

0.01µ

Audio or

Data Input

MOTOROLA RF/IF DEVICE DATA

11

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