
TB9100 Reciter Service Manual
Reference Switch
31
© Tait Electronics Limited January 2006
Figure 4.1
Reciter External Reference Block Diagram
/R
/N
10 or 12.8MHz
External Reference
Internal Reference
12.8MHz
TCXO
Progr
ammable
Reference Divider
Progr
ammable
VCO Divider
Phase
Detector
Charge
Pump
f
ref
f
VCOfb
Softw
are
Register
External Reference
Detector
Lock
Detect
RISC
8/9
Prescaler
Frequency Synthesizer IC
Loop
Filter
External Reference
12.8MHz
VCO
Clock
Data
Chip Select/Latch Enable
Serial Bus
External
Reference
Buffer
12.8MHz
VCXO
Feedback Buffer
Reference Switch
Ext_Ref_Det
Ext_Ref_Lock_Detect
Digital Switch
OFF / ON
ON / OFF
RF Switch
Ext_Ref_Ctrl
Buffer
Buffer
FCL Reference
Receiver Synthesizer
Reference
Digital Clock
Synthesizer Reference
Internal/External Reference Clock Br
anch
Summary of Contents for TB9100
Page 1: ...TB9100 base station Reciter Service Manual MBA 00017 01 Issue 1 January 2006...
Page 12: ...12 TB9100 Reciter Service Manual Tait Electronics Limited January 2006...
Page 32: ...32 Reference Switch TB9100 Reciter Service Manual Tait Electronics Limited January 2006...
Page 86: ...86 Network Circuitry TB9100 Reciter Service Manual Tait Electronics Limited January 2006...