W55RFS27R1B Datasheet, PDF (3/15 Pages) Winbond – SUPER-REGENERATION RF RECEIVER

W55RFS27R1B
1.2 W55RFS27R1B Pad Definition
1.2.1 Pad Description
SYMBOL
PAD
NO.
I/O
FUNCTIONAL DESCRIPTION
GND
1 Ground Ground return path
CMFB
2
RBIAS
3
RSAW
4
O
Common-mode feedback capacitor connection
I
Resistor to adjust internal circuit bias
O
Resistor to control internal saw generator
VDDA
5 Power Regulated voltage output
OSCin
6
I
Oscillator tank input
OSCout
7
O
Oscillator tank output
GNDA
8 Ground Regulator ground return path
Reset
9
I
Reset = 0 resets whole chip, internally pulled high
Mode0
10
I
Mode select LSB, please see 1.2.2 for details
Mode1
11
I
Mode select MSB, please see 1.2.2 for details
TEST
12
I
TEST = 1 for chip testing; must be set to “0” for regular operation.
(manual mode) Decoder F2 output
F2
13
O/I
(uC-mode) $ENB ("0" = power down)*
(manual mode) Decoder F1 output
F1
14
O/I
(uC-mode) Not used; set to “0”*
(manual mode) Decoder Right-turn output
R
15
O/I
(uC-mode) HOPCLK; set to “0”*
(manual mode) Decoder Left-turn output
L
16
O/I
(uC-mode) $OAGC2; set to “0” *
(manual mode) Decoder Backward output
B
17
O/I
(uC-mode) $OAGC1; set to “1” *
(manual mode) Decoder Forward output
F
18
O/I
(uC-mode) $OAGC0; set to “0” *
RXD
19
O/I Receiver data output
VSPLY
20 Power Power input
(* For uC-mode control, please see section 4.2 W55RFS27R1B Smart-Detector^WB Function)
Publication Release Date:June 8, 2005
-3-
Revision A3