DatasheetQ Logo
Electronic component search and free download site.
Transistors,MosFET ,Diode,Integrated circuits

TSA5518M View Datasheet(PDF) - Philips Electronics

Part Name
Description
Manufacturer
TSA5518M Datasheet PDF : 20 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
Philips Semiconductors
1.3 GHz bidirectional I2C-bus controlled
synthesizer
Product specification
TSA5518M
Table 1 Write data format
BYTE
DESCRIPTION
MS
B
LSB ACKNOWLEDGE
1
address
1 1 0 0 0 MA1 MA0 0 LOW from device
2
programmable divider
0 N14 N13 N12 N11 N10 N9 N8 LOW from device
3
programmable divider
N7 N6 N5 N4 N3 N2 N1 N0 LOW from device
4
charge-pump, bandswitch and test bits 1 CP T1 T0 BSC B1 B0 OS LOW from device
5
output ports control bits
P7 P6 P5 P4 X P2 P1 P0 LOW from device
Table 2 Explanation of Table 1
BIT
MA1, MA0
N14, .. , N0
CP
T1, T0, OS
BSC
B1, B0
P6, P2, P1 and P0
P4, P5 and P7
X
DESCRIPTION
programmable address bits (see Table 7)
programmable divider bits
N = N14 × 214 + N13 × 213 +...+ N1 × 21 + N0
charge pump current
CP = 0 to 50 µA; CP = 1 to 220 µA
T1 = 0, T0 = 0, OS = 0: normal operation
T1 = 1: P2 = fDIV, P6 = fref
T0 = 1: 3-state charge pump
OS = 1: operational amplifier output is switched off (varicap drive disable)
bandswitch control bit
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
bandswitch control bits
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
don’t care
Table 3 BS output control (BSC = 0)
B1
B0
VOLTAGE ON PIN BS
0
0
0.25 V
0
1
2V
1
0
4V
1
1
VCC
Table 4 BS output control (BSC = 1)
P7
P5
P4
VOLTAGE ON PIN BS
1
1
0
0.25 V
1
0
1
2V
0
1
1
4V
1997 Mar 07
5
 

Share Link: 

datasheetq.com  [ Privacy Policy ]Request Datasheet ] [ Contact Us ]