SA639DH 参数 Datasheet PDF下载

Philips Semiconductors

Product specification

Low voltage mixer FM IF system with filter amplifier

and data switch

SA639

PIN FUNCTIONS

All DC voltages measured with Pin 8 = Pin 12 = Pin 19 = 0V, Pin 5 = 3V and Pin 9 connected to Pin 10.

EQUIVALENT CIRCUIT

PIN

PIN

DC V

No. MNEMONIC

EQUIVALENT CIRCUIT

V

CC

PIN

PIN

DC V

No. MNEMONIC

RSSI

1

RF IN

+1.07

6

FEEDBACK

+0.20

6

—

+

0.8k

1

0.8k

2

V

CC

RF

2

BYPASS

+1.07

7

RSSI

OUT

+0.20

+

—

7

R

XTAL

3

OSC

+1.57

4

18k

POWER

8

DOWN

0.00

8

R

MIX

V

CC

3

XTAL

4

OSC

+2.32

150µA

DATA

9

OUT

+1.7

9

5

V

REF

POST

10

AMP

IN

+1.70

10

5

V

CC

+3.00

BANDGAP

20µA

SR00032

Figure 3. Pin Functions

1998 Feb 10

7