MC44826

6

MOTOROLA ANALOG IC DEVICE DATA

Chip Address

The chip address is programmable by Pin 9 (CA – Address

Select).

CA – Pin 9

Address (HEX.)

–0.04 VCC1 to 0.1 VCC1

C6

Open or 0.2 VCC1 to 0.3 VCC1

C4

0.42 VCC1 to 0.75 VCC1

C2

0.9 VCC1 to 1.2 VCC1

C0

Figure 5. Definition of Bytes

CA_Chip Address

1

1

0

0

0

0/1

0/1

0

ACK

CO_Information

1

T14

T13

T12

T11

T10

T9

T8

ACK

BA_Band Information

T7

T6

B5

X

B3

X

B1

X

ACK

FM_Frequency Information

0

N14

N13

N12

N11

N10

N9

N8

ACK

FL_Frequency Information

N7

N6

N5

N4

N3

N2

N1

N0

ACK

CA_Chip Address

1

1

0

0

0

0/1

0/1

0

ACK

FM_Frequency Information

0

N14

N13

N12

N11

N10

N9

N8

ACK

FL_Frequency Information

N7

N6

N5

N4

N3

N2

N1

N0

ACK

CO_Information

1

T14

T13

T12

T11

T10

T9

T8

ACK

BA_Band Information

T7

T6

B5

X

B3

X

B1

X

ACK

1.0 nF

÷8

Pres

Figure 6. Typical Tuner Application

6

7

8

B5

B3

B1

12 pF

3.2/4.0 MHz

Gnd

2

114

B III

VHF

UHF

AGC

VTUN

Phase

Comp

2.7 V

Mixer

B. P. Filter

Antenna

Filter

Oscillator

IF

5

5.0 V

11

10

9

13

Osc &

Ref Div

3

Fosc

SDA

SCL

CA

Bus

Rec

22 nF

47 k

(Note 1)

(Note 2)

330 p

47 nF

NOTES: 1. On some layouts the 100

Ω resistor will not be required.

2. C2 = 330 pF minimum is required for stability.

MC44826

Band Decoder

4

RL

1.0 nF

33 V

Program

Divider

12

M/O