DEMOBOARD-U3600BM Atmel, DEMOBOARD-U3600BM Datasheet - Page 38

• Manufacturer Part Number: DEMOBOARD-U3600BM
• Description: BOARD DEMO FOR U3600BM
• Manufacturer: Atmel
• Type: Cordless Phone ICr

Specifications of DEMOBOARD-U3600BM

• Contents: Board, Software and Documentation
• For Use With/related Products: U3600BM
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

20. Others
38
U3600BM
6. AntiBacklash
7. VCOFA
1. RESET
2. Prog_Info
3. QUIT/END
This button opens a window to adjust ear piece gain for adapting acoustic to electric parts.
Opens a window to tune antibacklash of VCO2. Antibacklash bits (two bits) are set to zero
and should not be changed by the customer. This adjustment possibility is reserved for the
possibility of correction during the development phase.
(Antibacklash means: in the case where VCO2 is locked, the correction pulses for locking
would be zero without antibacklash. With antibacklash, however, there is a positive/negative
pulse of equal length even in the lock condition. Small corrections would normally not come
through with the duty-cycle of reference frequency, due to propagation delay, but with the
antibacklash function, these small corrections become active with the cycle of the reference
frequency. Without antibacklash, undesired spurious would occur).
VCO1 and VCO3 incorporate fixed internal antibacklash lengths.
This button opens a window for adjusting VCO1/VCO2/VCO3. Normally, VCO1 and VCO2
are predefined for a certain country and should be used only for test purposes.
VCO3 adjustment is used in conjunction with the tank circuit connected to pin-LO1 and
pin-LO2.
This button is used to initialize the demonstration software and reset all register bits to zero
so that a defined starting condition is available.
Phone number to call in case of any problems concerning the U3600BM application.
Termination of the U3600BM demonstration program.
4804A–CT0–03/06