LTC4402-2EMS Linear Technology, LTC4402-2EMS Datasheet - Page 4

• Manufacturer Part Number: LTC4402-2EMS
• Description: IC CTRLR RF PWR MULTIBAND 10MSOP
• Manufacturer: Linear Technology

Specifications of LTC4402-2EMS

• Rf Type: Cellular, GSM, GPRS, PCS, Wireless Modem, TDMA
• Frequency: 300MHz ~ 2.4GHz
• Features: Dual Output
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

BLOCK DIAGRA
LTC4402-1/LTC4402-2
GND (Pin 4/5): System Ground.
PCTL (Pin 5/6): Analog Input. The external power control
DAC drives this input. The amplifier servos the RF power
until the RF detected signal equals the DAC signal applied
at this pin.
SHDN (Pin 6/7): Shutdown Input. A logic low on the SHDN
pin places the part in shutdown mode. A logic high enables
the part after 10 s. SHDN has an internal 150k pull-down
resistor to ensure that the part is in shutdown when no input
is applied.
PI FU CTIO S
4
U
GND
RF
50
0.4pF
10
4
5
0.05pF
U
60 A
250
U
150k
28pF
DELAY
V
SHDN
9 s
IN
7
V
W
60 A
(LTC4402-1/LTC4402-2)
IN
30k
30k
1
(LTC4402-2)
COMPRESSION
+
–
TXENB
RFDET
GAIN
Li-Ion
V
V
850MHz/900MHz
HOLD
HOLD
8
150k
22k
AUTOZERO
PCTL
+
–
6
RF PA
51k
38k
70mV
270kHz
FILTER
V
REF
AZ
–
+
GM
–
+
V
HOLD
V
opens control loop and holds voltage at V
EDGE modulation.
BSEL (Pin 9): (LTC4402-2 Only) Selects V
and V
resistor to ground.
RF (Pin 8/10): Coupled RF Feedback Voltage . This input
is referenced to V
2400MHz. This pin has an internal 250 termination, an
internal Schottky diode detector and peak detector
capacitor.
HOLD
DIPLEXER
C
C
REF
HOLD
PCB
(Pin 7/8): Asserted high prior to AM modulation,
150k
TXENB
BSEL
when high. This input has an internal 150k
9
V
HOLD
+
–
CONTROL
+
–
RF PA
MUX
IN
BUFFER
. The frequency range is 300MHz to
PB
PA
1.8GHz/1.9GHz
100
100
12
12
PCA
or V
PCA
4402 BD
2
3
PCB
V
V
when low
PCA
PCB
during
4402f