Datasheet MC2833D, MC2833P Datasheet (Motorola)

Device

Operating

Temperature Range

Package



SEMICONDUCTOR

TECHNICAL DATA

LOW POWER

FM TRANSMITTER

SYSTEM

ORDERING INFORMATION

MC2833D
MC2833P

TA = – 30 to +75°C

SO–16

Plastic DIP

PIN CONNECTIONS

Order this document by MC2833/D

D SUFFIX

PLASTIC PACKAGE

CASE 751B

(SO–16)

P SUFFIX

PLASTIC PACKAGE

CASE 648

Tr 1

Base

Tr 1

Emitter

Gnd

Mic Amp

Input

9

10

11

12

13

14

15

16

8

7

6

5

4

3

2

1

Variable

Reactance

Output

Decoupling

Modulator

Input

Mic Amp

Output

Tr 1
Collector

V

CC

Tr 2
Collector

Tr 2
Emitter

Tr 2

Base

RF
Output

RF
Osc

1

MOTOROLA ANALOG IC DEVICE DATA

  
 

MC2833 is a one–chip FM transmitter subsystem designed for cordless
telephone and FM communication equipment. It includes a microphone
amplifier, voltage controlled oscillator and two auxiliary transistors.

• Wide Range of Operating Supply Voltage (2.8–9.0 V)

• Low Drain Current (I

CC

= 2.9 mA Typ)

• Low Number of External Parts Required

• – 30 dBm Power Output to 60 MHz Using Direct RF Output

• +10 dBm Power Output Attainable Using On–Chip Transistor Amplifiers

• Users Must Comply with Local Regulations on R.F.

Transmission (FCC, DOT, P.T.T., etc)

Representative Block Diagram

+–

2

16

15

14

13

12

11

10

9

8

7

6

5

4

3

1

Variable

Reactance

RF

Osc

Buffer

Mic

Amp

V

REF

 Motorola, Inc. 1996 Rev 1

MC2833

2

MOTOROLA ANALOG IC DEVICE DATA

MAXIMUM RATINGS

Ratings Symbol Value Unit

Power Supply Voltage V

CC

10 (max) V

Operating Supply Voltage Range V

CC

2.8–9.0 V

Junction Temperature T

J

+ 150 °C

Operating Ambient Temperature T

A

– 30 to + 75 °C

Storage Temperature Range T

stg

– 65 to + 150 °C

ELECTRICAL CHARACTERISTICS (V

CC

= 4.0 V, TA = 25°C, unless otherwise noted)

Characteristics

Symbol Pin Min Typ Max Unit

Drain Current (No input signal) I

CC

10 1.7 2.9 4.3 mA

FM MODULATOR

Output RF Voltage (fo = 16.6 MHz) V

out

RF 14 60 90 130 mVrms
Output DC Voltage (No input signal) Vdc 14 2.2 2.5 2.8 V
Modulation Sensitivity (fo = 16.6 MHz)

Modulation Sensitivity (Vin = 0.8 V to 1.2 V)

SEN 3

14

7.0
–

10

–

15–Hz/mVdc

Maximum Deviation (fo = 16.6 MHz)

Maximum Deviation (Vin = 0 V to 2.0 V)

Fdev 3

14

3.0
–

5.0
–

10

–

kHz

MIC AMPLIFIER

Closed Loop Voltage Gain (Vin = 3.0 mVrms)

Closed Loop Voltage Gain (fin = 1.0 kHz)

A

v

4
5

27

–

30

–

33

–

dB

Output DC Voltage (No input signal) V

out

dc 4 1.1 1.4 1.7 V

Output Swing Voltage (Vin = 30 mVrms)

Output Swing Voltage (fin = 1.0 kHz)

V

out

p–p 4 0.8 1.2 1.6 Vp–p

Total Harmonic Distortion (Vin = 3.0 mVrms)

Total Harmonic Distortion (fin = 1.0 kHz)

THD 4 – 0.15 2.0 %

AUXILIARY TRANSISTOR STATIC CHARACTERISTICS

Characteristics Symbol Min Typ Max Unit

Collector Base Breakdown Voltage (IC = 5.0 µA) V

(BR)CBO

15 45 – V

Collector Emitter Breakdown Voltage (IC = 200 µA) V

(BR)CEO

10 15 – V

Collector Substrate Breakdown Voltage (IC = 50 µA) V

(BR)CSO

– 70 – V

Emitter Base Breakdown Voltage (IE = 50 µA) V

(BR)EBO

– 6.2 – V

Collector Base Cut Off Current (VCB = 10 V)

Collector Base Cut Off Current (IE = 0)

I

CBO

– – 200 nA

DC Current Gain (IC = 3.0 mA)

DC Current Gain (VCE = 3.0 V)

h

FE

40 150 – –

AUXILIARY TRANSISTOR DYNAMIC CHARACTERISTICS

Current Gain Bandwidth Product (VCE = 3.0 V)

Current Gain Bandwidth Product (IC = 3.0 mA)

f

T

– 500 – MHz

Collector Base Capacitance (VCE = 3.0 V)

Collector Base Capacitance (IC = 0)

C

CB

– 2.0 – pF

Collector Substrate Capacitance (VCS = 3.0 V)

Collector Substrate Capacitance (IC = 0)

C

CS

– 3.3 – pF

MC2833

3

MOTOROLA ANALOG IC DEVICE DATA

Figure 1. Test Circuit

Figure 2. Single Chip VHF Narrowband FM Transmitter

Electret
(alternate)
Microphone
and biasing

470 p

1.0

µ

F

tantalum

+

1000 p

C5

RF Output

5.0 to 10 dBm
(see Note 4)

C4

C3

L1

L2

C2

1.0 k

390 k

0.22

µ

C1

Cc1

47 p

Q2

Cc2

V

CC

= 9.0 Vdc

Rb1

470 p

Q1

Re1

2.7 k

4.7 k

Dynamic

Mike

Audio
Input

100 k

Deviation
Adjust

120 k

X1Lt

1.0 k

56 p

51 p

V

REF

Buffer

RF

Osc.

Variable

Reactance

Mic Amp

9

16

15

14

13

12

1

2

3

4

5

6

7

8

10

11

+–

1.0

µ

100 k

4700 p

4700 p

Crystal:

39 pF

68 pF

+

47

µ

F

0.01

µ

F

Collector 1

Collector 2

Base 2

Emitter 2

Base 1

Emitter 1

Mic Amp

Out

RF Out

0.0047

µ

F

Mod Out

16.605 MHz

5.1

µ

H

Mod In

Mic Amp

In

220 k

6.3 k

MC2833

6

7

1

2

3

4

5

89

10

11

12

13

14

15

16

f

o

C

L

C

o

R

S

= 16.605 MHz
= 30 pF
= 6.1 pF
= 10 Ω Max

NOTES:

1. Components versus output frequency:

Output RF

X1 (MHz) Lt (µH) L1 (µH) L2 (µH) Re1 Rb1 Cc1 Cc2 C1 C2 C3 C4 C5

49.7 MHz
76 MHz

144.6 MHz

16.5667

12.6000

12.05

3.3–4.7

5.1

5.6

0.22

0.22

0.15

0.22

0.22

0.10

330
150
150

390 k
300 k
220 k

33 p
68 p
47 p

33 p
10 p
10 p

33 p
68 p
68 p

470 p
470 p
1000 p

33 p
12 p
18 p

47 p
20 p
12 p

220 p
120 p

33 p

2. Crystal X1 is fundamental mode, calibrated for parallel resonance with a 32 pF load. The final output frequency is generated by frequency multiplication within

2. the MC2833 IC. The RF output buffer (Pin 14) and Q2 transistor are used as a frequency tripler and doubler, respectively, in the 76 and 144.6 MHz transmitters.

2. The Q1 output transistor is a linear amplifier in the 49.7 MHz and 76 MHz transmitters, and a frequency doubler in the 144.6 MHz transmitter.

3. All coils used are 7 mm shielded inductors, CoilCraft series M1 175A, M1282A–M1289A, M1312A or equivalent.

4. Power output is ≈ + 10 dBm for 49.7 MHz and 76 MHz transmitters, and ≈ + 5.0 dBm for the 144.6 MHz transmitter at VCC = 8.0 V. Power output drops with

4. lower VCC.

5. All capacitors in microfarads, inductors in Henries and resistors in Ohms unless otherwise specified.

6. Other frequency combinations may be set–up by simple scaling of the 3 examples shown.

MC2833

4

MOTOROLA ANALOG IC DEVICE DATA

Figure 3. Buffer/Multiplier (x3, Pin 14)

(16 MHz Fundamental)

38 MHz 76 MHz

– 43 dB

Figure 4. Input to Doubler (Pin 13)

(49.7 MHz x 3 Component)

Figure 5. Doubler Output 76 MHz (Pin 11) Figure 6. Spectrum

Figure 7. Output Spectrum (49.7 MHz)

Figure 8. Modulation Spectrum

(1.0 kHz Showing Carrier Null)

MC2833

5

MOTOROLA ANALOG IC DEVICE DATA

Figure 9. 144.6 MHz/x12 Multiplier

MC2833P

VCC

IN

GND

OUT

MC2833P

Figure 10. Circuit Side View

Figure 11. Ground Plane on Component Side

MC2833

6

MOTOROLA ANALOG IC DEVICE DATA

NOTES: • Positive artwork provided.

• Drill holes must be plated to ensure making all ground (VEE) connections!

• Resistors labelled * are used for biasing of electret microphone if used.

• Capacitors labelled ″SM″ are silver mica.

• Final board size 1.5″ × 2.0″.

MC2833P

1.5

″

2.0

″

C4

SM

390K

1K

2.7K

Rb1

1K

120K

100K

1.0

100K

51p

SM

56p

SM

L1

L2

X1 XTAL

Lt

1.0

Re1

4.7 Kp

4.7 Kp

470p

Cc2

470p

47p

Cc1

1Kp

C2

C1

SM

C3

SM

C5

SM

.22 H

µ

4.7 K

MC2833P

Figure 12. Component View

MC2833

7

MOTOROLA ANALOG IC DEVICE DATA

Pin 9 Pin 7

Pin 11 Pin 12

Pin 8

Pin 13

Pin 10

Pin 15

Pin16

Pin 1

Pin 2

Pin 3

Pin 14

Pin 4

Pin 5

Pin 6

10 k

2.2 k

2.2 k

8 k

4.7 k

610

570

4.7 k

120

120

470

520

2.2 k

2.2 k

570

15 k

820

50 50

15 k

24 k

6.8 k

6.8 k

9.7 k

18 k

18 k

18 k

8.5 k

20.2 k

18 k

56 k

Figure 13. Circuit Schematic

MC2833

8

MOTOROLA ANALOG IC DEVICE DATA

OUTLINE DIMENSIONS

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.

2. CONTROLLING DIMENSION: INCH.

3. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.

4. DIMENSION B DOES NOT INCLUDE MOLD FLASH.

5. ROUNDED CORNERS OPTIONAL.

–A–

B

F

C

S

H

G

D

J

L

M

16 PL

SEATING

18

916

K

PLANE

–T–

M

A

M

0.25 (0.010) T

DIM MIN MAX MIN MAX

MILLIMETERSINCHES

A 0.740 0.770 18.80 19.55
B 0.250 0.270 6.35 6.85
C 0.145 0.175 3.69 4.44
D 0.015 0.021 0.39 0.53
F 0.040 0.70 1.02 1.77
G 0.100 BSC 2.54 BSC
H 0.050 BSC 1.27 BSC
J 0.008 0.015 0.21 0.38
K 0.110 0.130 2.80 3.30
L 0.295 0.305 7.50 7.74
M 0 10 0 10
S 0.020 0.040 0.51 1.01

____

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER.

3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.

4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.

5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.

18

16 9

SEATING

PLANE

F

J

M

R

X 45

_

G

8 PLP

–B–

–A–

M

0.25 (0.010) B

S

–T–

D

K

C

16 PL

S

B

M

0.25 (0.010) A

S

T

DIM MIN MAX MIN MAX

INCHESMILLIMETERS

A 9.80 10.00 0.386 0.393
B 3.80 4.00 0.150 0.157
C 1.35 1.75 0.054 0.068
D 0.35 0.49 0.014 0.019

F 0.40 1.25 0.016 0.049

G 1.27 BSC 0.050 BSC

J 0.19 0.25 0.008 0.009
K 0.10 0.25 0.004 0.009
M 0 7 0 7
P 5.80 6.20 0.229 0.244
R 0.25 0.50 0.010 0.019

____

D SUFFIX

PLASTIC PACKAGE

CASE 751B–05

(SO–16)
ISSUE J

P SUFFIX

PLASTIC PACKAGE

CASE 648–08

ISSUE R

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MC2833/D

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