tsa5518m NXP Semiconductors, tsa5518m Datasheet - Page 5

• Manufacturer Part Number: tsa5518m
• Description: 1.3 Ghz Bidirectional I2c-bus Controlled Synthesizer
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 1 Write data format
Table 2 Explanation of Table 1
Table 3 BS output control (BSC = 0)
1997 Mar 07
1
2
3
4
5
MA1, MA0
N14, .. , N0
CP
T1, T0, OS
BSC
B1, B0
P6, P2, P1 and P0
P4, P5 and P7
X
BYTE
1.3 GHz bidirectional I
synthesizer
B1
0
0
1
1
address
programmable divider
programmable divider
charge-pump, bandswitch and test bits 1
output ports control bits
BIT
B0
DESCRIPTION
0
1
0
1
programmable address bits (see Table 7)
programmable divider bits
charge pump current
bandswitch control bit
bandswitch control bits
don’t care
N = N14
CP = 0 to 50 A; CP = 1 to 220 A
T1 = 0, T0 = 0, OS = 0: normal operation
T1 = 1: P2 = f
T0 = 1: 3-state charge pump
OS = 1: operational amplifier output is switched off (varicap drive disable)
BSC = 0: bandswitch output is controlled by B1 and B0 bits according to Table 3
BSC = 1: bandswitch output is controlled by P7, P5 and P4 bits according to Table 4
P6, P2 .. P0 = 1: open-collector outputs are active
P6, P2 .. P0 = 0: outputs are in high impedance state
P4, P5 and P7 = 1: outputs are at low level
P4, P5 and P7 = 0: emitter follower outputs are active
VOLTAGE ON PIN BS
2
2
14
C-bus controlled
DIV
0.25 V
+ N13
V
2 V
4 V
, P6 = f
CC
2
ref
1
0
N7
P7
MS
13
B
+...+ N1
1
N14 N13 N12 N11
N6
CP
P6
5
0
N5
T1
P5
Table 4 BS output control (BSC = 1)
DESCRIPTION
2
1
P7
+ N0
1
1
0
0
N4
T0
P4
0
N3
BSC B1
X
P5
1
0
1
MA1 MA0 0
N10 N9
N2
P2
P4
0
1
1
N1
B0
P1
N8
N0
OS
P0
LSB ACKNOWLEDGE
VOLTAGE ON PIN BS
Product specification
LOW from device
LOW from device
LOW from device
LOW from device
LOW from device
TSA5518M
0.25 V
2 V
4 V