MICRF405YML TR Micrel Inc, MICRF405YML TR Datasheet - Page 37

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

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
Micrel
LDO_by
PA_LDc_en
MOD_LDc_en
SyncID_Len1
PA_FEc_en
LD_en
X
1
0
0
0
0
1
0
1
0
1
0
1
0
0
1
1
LDO_EN1
0
X
0
1
1
Comments
PA is only controlled by Mode1 and Mode and PA0-2, PA on in transmit mode (Mode[1:0]=3 and PA[2:0]>0)
In transmit mode, PA is turned on by Lock Detect (LD=1 -> PA on). PA is turned off by load pulse or when
using openloop modulation and setting the DATAIN pin in tri-state. PA will be turned on again once LD goes
high again. LD_en must be set to 1.
LD off
LD on
State
Comments
Comments
SyncID_Len0
Modulation starts once frame length is written into data byte.
Modulation starts once frame length is written into data byte and PA is turned on and LD is high.
PA is turned off by Mode1 and Mode0 or PA0-2 and PA_LDc_en=0
PA is turned off immediately after the frame is transmitted.
Table 32. Lock Detect Controlled Start of Modulation (only for BIT_IO_en=0).
LDO_EN0
0
1
0
1
X
0
1
0
1
Comments
Output is 0 volt, or test signals specified by OUTS[2:0]
LD pin high indicate that the PLL is locked
Comments
SyncID length is 1 byte. SyncID0 is sent
SyncID length is 2 bytes. SyncID0 and SyncID1 is sent
SyncID length is 3 bytes. SyncID0, SyncID1 and SyncID2 is sent
SyncID length is 4 bytes. SyncID0, SyncID1, SyncID2 and SyncID3 is sent.
Comments
LDOs turned off, power applied to AVDD, DVDD, RFVDD, min/max is 2.0/2.5 V, and
to VDD pin 11 and 1, min/max is 2.0/3.6V.
LDOs bypassed, power applied to the VDD pin1 and VDD pin11, min/max is 2.0/2.5 V
PA LDO turned on, power applied to VDD pin1 and 11, min/max is 2.0/3.6V, and to
AVDD and DVDD, min/max is 2.0/2.5V
PA and AVDD LDO turned on, power applied to the VDD pin1 and 11, min/max is
2.0/3.6V, and to DVDD, min/max is 2.0/2.5V
PA, AVDD and DIG LDO turned on, power applied to the VDD pin1 and VDD pin 11,
min/max is 2.0/3.6V
Table 30. Low DropOut Voltage Regulator.
Table 31. Lock Detect Controlled PA.
Table 33. Frameend Controlled PA.
Table 35. SyncID Field Length.
Table 34. Lock Detector.
37
MICRF405
[phone]
M9999-041906