SP5611 Datasheet, PDF (5/12 Pages) Mitel Networks Corporation – 1·3GHz Bidirectional I2C Bus Controlled Synthesiser

SP5611
MSB
LSB
Address
Programmable divider
Programmable divider
1 1 0 0 0 MA1 MA0 0 A
0 2¹⁴ 2¹³ 2¹² 2¹¹ 2¹⁰ 2⁹ 2⁸ A
2⁷ 2⁶ 2⁵ 2⁴ 2³ 2² 2¹ 2⁰ A
Charge pump and test bits 1 CP T1 T0 TS2 TS1 TS0 OS A
I/O port control bits
P7 P6 P5 P4 X X X X A
Table 1 Write data format (MSB transmitted first)
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Address
Status byte
1 1 0 0 0 MA1 MA0 1 A Byte 1
POR FL I2 I1 I0 A2 A1 A0 A Byte 2
Table 2 Read data format
A2 A1 A0 Voltage input to P6
1 00
0 11
0 10
0 01
0 00
0·6V_CC to 13·2V
0·45V_CC to 0·6V_CC
0·3V_CC to 0·45V_CC
0·15V_CC to 0·3V_CC
0V to 0·15V_CC
Table 3 ADC levels
MA1 MA0 Address select input voltage
00
01
0V to 0·1V_CC
Open circuit
10
0·4V_CC to 0·6V_CC
11
0·9V_CC to V_CC
Table 4 Address selection
T1 TS2 TS1 TS0
Operation mode description
0 X X 0 Normal operation, test modes disabled, reference divider ratio = 1024
0 X X 1 Normal operation, test modes disabled, reference divider ratio = 512
1 0 0 X Charge pump source (down). Status bit FL set to 0
1 0 1 X Charge pump sink (up). Status bit FL set to 1
1 1 0 0 Ports P4, P5, P6, P7set to state X
1 1 0 1 Port P7 = F_PD/2; P4, P5, P6 set to state X
1 1 1 X Port P7 = F_PD; P6 = F_COMP; P4, P5 set to state X
NOTES
Table 5 Operation modes
X = don’t care
For further details of test modes, see Table 6
A
MA1, MA0
CP
T1
T0
TS2, TS1, TS0
OS
P7, P6, P5, P4,
POR
FL
I2, I1, I0
A2, A1, A0
X
: Acknowledge bit
: Variable address bits (see Table 4)
: Charge Pump current select
: Test mode selection
: Charge pump disable
: Operation mode control bits (see Table 5)
: Varactor drive Output disable Switch
: Control output port states
: Power On Reset indicator
: Phase lock detect flag
: Digital information from ports P7, P5 and P4 respectively
: 5-level ADC data from P6 (see Table 3)
: Don’t care
Fig. 3 Data formats
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