MICRF405YML TR Micrel Inc, MICRF405YML TR Datasheet - Page 17

868-915 MHz ISM Band Transmitter

MICRF405YML TR

Manufacturer Part Number
MICRF405YML TR
Description
868-915 MHz ISM Band Transmitter
Manufacturer
Micrel Inc
Datasheet

Specifications of MICRF405YML TR

Frequency
290MHz ~ 980MHz
Applications
ISM
Modulation Or Protocol
ASK, FSK
Data Rate - Maximum
200 kbps
Power - Output
10dBm
Current - Transmitting
18mA
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Voltage - Supply
2.2 V ~ 3.6 V
Operating Temperature
-40°C ~ 125°C
Package / Case
24-MLF®, QFN
Operating Temperature (min)
-40C
Operating Temperature (max)
125C
Operating Temperature Classification
Automotive
Product Depth (mm)
4mm
Product Length (mm)
4mm
Operating Supply Voltage (typ)
2.5/3.3V
Operating Supply Voltage (max)
3.6V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Memory Size
-
Lead Free Status / Rohs Status
Compliant
Other names
576-1965-2
MICRF405YMLTR
MICRF405YMLTR
April 2006
Programming Summary
Micrel
• Use SEN, SCK, and SIO to get access to the
• SCK is user-controlled.
• Write to the MICRF405 on positive edges
• Read from the MICRF405 on negative edges
• Address field is 7 bits long. Enter MSB first.
• R/W bit is “1” for read and “0” for write.
• Address and R/W bit together make 1 octet
• Enter/read MSB in every octet first.
control registers in MICRF405.
(MICRF405 reads on negative edges).
(MICRF405 writes on positive edges)
Figure 7. Sequence of a Typical Packet Transfer.
17
• Always write 8 bits to/read 8 bits from a control
• Writing: Bring SEN low, write address and R/W
register. This is the case for registers with less
than 8 used bits as well.
bit followed by the new values to fill into the
addressed control register(s) and bring SEN
high for loading, i.e. activation of the new control
register values (“Load_en” = 1).
MICRF405
(408) 955-1690
M9999-041906

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