SP5511 Datasheet, PDF (6/12 Pages) Zarlink Semiconductor Inc – Bidirectional I2C Bus 4-Address Synthesiser

SP5511
APPLICATION
A typical application is shown in Fig. 4. All input/output interface circuits are shown in Fig. 6.
15V
CONTROL
MICRO
130V
39n
180n
22k ^15V
18p
4MHz
SDA
I²C BUS _SCL
P7
P6
P5
P4
112V
P3
22k
1
18
2
17
3
16
4
15
5 SP5511 14
6
13
7
12
8
11
9
10
2N3904
1n
1n
P0
P1
P2
112V
0·1µ
10k
47k
10n
VT _{VARACTOR DRIVE}
22k
22k
22k
OSCILLATOR OUTPUT
TUNER
2N3906
2N3906
2N3906
BAND INPUTS
AFC OUT
IF SECTION
IF SIGNAL
Fig. 4 Typical application
300
37·5
25
12·5
80
OPERATING
WINDOW
500
1000
FREQUENCY (MHz)
Fig. 5 Typical input sensitivity
1300 1500
6