th7121 ETC-unknow, th7121 Datasheet - Page 15

• Manufacturer Part Number: th7121
• Description: 300 To 930mhz Fsk/fm/ask Transceiver
• Manufacturer: ETC-unknow

D-word
3901007121
Rev. 001
ER_TM1:ER_TM0
ER_TM1:ER_TM0 [18:17]
LD_TM1:LD_TM0
LD_TM1:LD_TM0 [20:19]
Software button
MODUL_CTR
MODCTRL
NT16:NT0
NT16:NT0
Symbol
[16:0]
Bits
[21]
No.
17
2
2
1
Select mode of modulation control:
Select maximum enabled PFD output error for lock detecting
‘00’
‘01’
‘10’
‘11’
Select minimum number of PFD reference frequency clocks
‘00’
‘01’
‘10’
‘11’
‘0’
‘1’
Page 15 of 28
16 clocks
256 clocks
external modulation control
internal modulation control
2 clocks
4 clocks
8 clocks
16 clocks
64 clocks
Feedback divider ratio in TX mode
4 clocks
(in reference frequency clocks):
before lock detecting:
Description
FSK/FM/ASK Transceiver
300 to 930MHz
TH7121
Data Sheet
Jan. 2002