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SP5669 Datasheet, PDF (7/15 Pages) Mitel Networks Corporation – 2.7GHz I2C Bus Controlled Synthesiser
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SP5669
ADDRESS
PROGRAMMABLE
DIVIDER
PROGRAMMABLE
DIVIDER
CONTROL DATA
CONTROL DATA
MSB
LSB
1
1
0
0
0 MA1 MA0 0
A Byte 1
0
2 14
2 13
2 12
2 11
210
29
28
A Byte 2
27
26
25
24
23
22
21
20
A Byte 3
1
216
215
PE
R3
R2 R1
R0
A Byte 4
C1 C0 RE RTS P3 P2/TS2 P1/TS1 P0/TS0 A Byte 5
Table 1 Write data format (MSB is transmitted first)
ADDRESS
STATUS BYTE
MSB
LSB
1
1
0
0
0 MA1 MA0 1
POR FL
X
X
X
A2 A1
A0
Table 2 Read data format (MSB is transmitted first)
A Byte 1
A Byte 2
A
MA1, MA0
2 16 –2 0
PE
R3,R2,R1,R0
C1, C0
RE
RTS
RTS
TS2, TS1, TS0
P0
P3, P2, P1
POR
FL
A2, A1, A0
X
: Acknowledge bit
: Variable address bits (see Table 3)
: Programmable division ratio control bits
: Prescaler enable
: Reference division ratio select (see Fig. 3)
: Charge pump current select (see Fig.6)
: Reference oscillator output enable
: REF/COMP output select when RE=1 (see Fig.5)
: Test mode enable when RE=0 (see Fig.5)
: Test mode control bits (valid when RE=0, RTS=1, see Fig. 5)
: P0 port output state (always valid except when RE=0, RTS=1)
: P3, P2 and P1 port output states
: Power On Reset indicator
: Phase Lock Flag
: ADC data (see Table 4)
: Don’t care
MA1
MA0 Address input voltage level
0
0
0
1
0 – 0.1VCC
Open circuit
1
0
0.4V CC – 0.6VCC #
1
1
0.9V CC – VCC
# Programmed by connecting a 15kΩ resistor
between pin 4 and VCC
Table 3 Address selection
A2 A1 A0 Voltage on ADC input
1
0
0
0.6V CC toV CC
0
1
1
0.45V CC to 0.6VCC
0
1
0
0.3V CC to 0.45VCC
0
0
1
0.15V CC to 0.3VCC
0
0
0
0 to 0.15VCC
Table 4 ADC levels
Figure. 4 Data formats
7
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