W55RFS27R3C Datasheet, PDF (4/13 Pages) Winbond – Super-Regeneration RF Receiver

W55RFS27R3C
1.2 W55RFS27R3C Pad Definition
1.2.1 W55RFS27R3C Pad Description
SYMBOL PAD NO. I/O
A/D
FUNCTIONAL DESCRIPTION
GND
1
Ground A Ground return path
CMFB
2
I/O
A Common-mode feedback capacitor connection
RBIAS
3
I/O
A Resistor to adjust internal ring-oscillator frequency
RSAW
4
I/O
A Resistor to control internal saw generator
VDDA
5
Power A Regulated voltage output
VDDA
6
Power A Regulated voltage output
GND_LNA
7
Ground A LNA Ground return path
VDD_LNA
8
Power A LNA power input
SDINGD
9
Ground A Filter capacitor connection
LNAING
10
I
A LNA Gate input
LNAINS
11
I
A LNA Source input
LNAOUT
12
O
A LNA output(NC)
OSCin
13
O
A Oscillator tank input
OSCout
14
O
A Oscillator tank output
GNDA
15
O
A Regulator ground return path
Resetn
16
I/O
D Resetn =0 reset whole circuit, internal pull-high
Mode
17
I
D
Receiver mode selection; should be “0” for regular
operation
ID setting(LSB) for Channel shared protocol
ID0
18
I
D
([ID1:ID0] = [1,1]) uC-mode
ID setting (MSB) for Channel shared protocol
ID1
19
I
D
([ID1:ID0] = [1,1]) uC-mode
TEST
20
I
D TEST=1, reserved for chip testing, internal pull-low
(manual-mode) Decoder F1 output
F1
21
I/O
D
(uC-mode) Set to “0”.
(manual-mode) Decoder F2 output
F2
22
I/O
D
(manual-mode) Power on trapping of Frequency
Hopping
(uC-mode) $ENB (“0” to power down)
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