SP5659 Datasheet, PDF (8/12 Pages) Mitel Networks Corporation – 2·7GHz I2C Bus Low Phase Noise Synthesiser

SP5659
EXTERNAL
REFERENCE
SK2
15V
P2
130V
112V
C7
C8
C9
100n
100n 100n
C6 10n
(NOT FITTED,
SEE NOTE 3)
P1
DISABLE/REF
ENABLE
DATA/SDA
CLOCK/SCL
X1 C1
4MHz 18p
C13
C14
100p
100p
NOTES
1. The circuit diagram shown is designed
for use with a number of synthesisers. ^P4
2. The LED connected to pin 11 is
redundant when an SP5659 is used in
this board.
3. To use an external reference,
capacitor C6 must be fitted and
D1
capacitor C1 removed from the board.
C3 68p
C2
15n
R6 13·3k
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
C4 1n
R8 22k
R8 16k
R9 47k
TR1
2N3904
C12 2·2n
C5 1n
15V
C10 1n
D2
D3
D4
D5
112V
C11
1n
P3
VAR
GND
SK1
RF INPUT
Fig. 7 Test board circuit diagram
RJM51 BOTTOM SILK SCREEN COMPONENT LOCATION
Fig. 8 Test board layout
8