MC13212 Freescale Semiconductor, MC13212 Datasheet - Page 24
MC13212
Manufacturer Part Number
MC13212
Description
IC TXRX RF 2.4GHZ FLSH 32K 71LGA
Manufacturer
Freescale Semiconductor
Series
MC1321xr
Datasheet
1.1321XCSK-BDM.pdf
(70 pages)
Specifications of MC13212
Frequency
2.4GHz
Data Rate - Maximum
250kbps
Modulation Or Protocol
802.15.4 Zigbee
Applications
General Purpose
Power - Output
3dBm
Sensitivity
-92dBm
Voltage - Supply
1.8 V ~ 3.6 V
Current - Receiving
42mA
Current - Transmitting
35mA
Data Interface
PCB, Surface Mount
Memory Size
32kB Flash, 2kB RAM
Antenna Connector
PCB, Surface Mount
Operating Temperature
-40°C ~ 85°C
Package / Case
71-LGA
Mounting Style
SMD/SMT
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MC13212
Manufacturer:
FREESCALE
Quantity:
20 000
Company:
Part Number:
MC13212R2
Manufacturer:
FREESCALE
Quantity:
340
24
3.
Balun
required by the radio. Separate RFIN and PAO signals are provided for connection with the baluns,
and the CT_Bias signal is programmed to provide the external switch control. The polarity of the
external switch control is selectable.
Figure 14C
the receive side, the RX antenna is ac-coupled to the differential RFIN inputs and these capacitors
along with inductor L1 form a matching network. Inductors L2 and L3 are ac-coupled to ground to
form a frequency trap. For the transmit side, the TX antenna is connected to the differential PAO
outputs, and inductors L4 and L5 provide dc-biasing to VDDA but are ac isolated.
14A) Using Onboard T/R Switch
Bypass
shows a dual antenna configuration where there is a RX antenna and a TX antenna. For
L1
Figure 14. Using the MC1321x with External RF Components
PAO_M
RFIN_M (PAO_M)
PAO_P
RFIN_P (PAO_P)
CT_Bias
RX Antenna
TX Antenna
L1
MC1321x
MC13211/212/213 Technical Data, Rev. 1.8
Bypass
L2
L4
14C) Using Dual Antennae
VDDA
L3
L5
Bypass
A nt
S w
14B) Using External Antenna Switch With LNA
RFIN_P (PAO_P)
PAO_M
RFIN_M (PAO_M)
CT_Bias
PAO_P
V D D
L NA
MC1321x
B a lun
B a lun
B yp a ss
B yp a s s
V D D A
Freescale Semiconductor
L 1
R F IN _ M (P A O _ M )
P A O _ M
P A O _ P
RF IN_ P (P A O _ P )
(A nt S w C tl)
C T_ B ia s
M C 1321x