cef830g Hope Microelectronics co., Ltd, cef830g Datasheet - Page 89
cef830g
Manufacturer Part Number
cef830g
Description
Rf42/43 Ism Transmitter
Manufacturer
Hope Microelectronics co., Ltd
Datasheet
1.CEF830G.pdf
(113 pages)
- Current page: 89 of 113
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Register 58h. Charge Pump Current Trimming/Override
Reset value = 100xxxxx
Register 59h. Divider Current Trimming/Delta-Sigma Test
Reset value = 10000000
Name
Name
Type
Type
7:6
4:0
Bit
Bit
Bit
5
Bit
5:4
3:2
1:0
7
6
Tel: +86-755-82973805
txcorboosten
D7
cpcurr[1:0]
d1p5trim[1:0]
txcorboosten
cporr[4:0]
cpcorrov
R/
d3trim[1:0]
d2trim[1:0]
Name
D7
fbdivhc
w
Name
cpcurr[1:0]
R/
w
D6
fbdivhc
R/
Charge Pump Current (Gain Setting).
Changing these bits will change the BW of the PLL. The default setting is
adequate for all data rates.
Charge Pump Correction Override Enable.
Charge Pump Correction Value.
During read, you read what the Charge Pump sees. If cpcorrov = 1, then the
value you write will go to the Charge Pump, and will also be the value you read.
By default, cpcorr[4:0] wakes up as all Zeros.
D6
w
If this is Set, then vcocorr (reg 5A[5:2]) = 1111 during TX Mode and VCO
CAL followed by TX.
Feedback (fractional) Divider High Current Enable (+5 μA).
Divider 3 Current Trim Value.
Divider 2 Current Trim Value.
Divider 1.5 (div-by-1.5) Current Trim Value.
Fax: +86-755-82973550
cpcorrov
D5
D5
R/
w
d3trim[1:0]
R/
w
D4
D4
E-mail: sales@hoperf.com
Function
Function
D3
D3
d2trim[1:0]
R/
w
cporr[4:0]
R/
D2
D2
w
R F 4 2 / 4 3
http://www.hoperf.com
D1
D1
d1p5trim[1:0]
R/
w
D0
D0
89
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