Features: • Supply Voltage: 8.5 V• RF Frequency Range: 1400 MHz to 1550 MHz• IF Frequency Range: 150 MHz to 250 MHz• Enhanced IM3 Rejection• Overall Gain Control Range: 30 dB Typically• DSB Noise Figure: 10 dB• Gain-controlled Amplifier and L-band Mixer...
U2730B-N: Features: • Supply Voltage: 8.5 V• RF Frequency Range: 1400 MHz to 1550 MHz• IF Frequency Range: 150 MHz to 250 MHz• Enhanced IM3 Rejection• Overall Gain Control Range:...
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Parameters |
Pins |
Symbol |
Value |
Unit |
Supply voltage |
3, 9, 20 and 28 |
VCCS |
-0.3 to +9.5 |
V |
RF input voltage |
25 and 26 |
VRF |
750 |
mVpp |
Voltage at pin AGC |
18 |
VAGC |
0.5 to 6 |
V |
Voltage at pin TH |
17 |
VVTH |
-0.3 to +4.0 |
V |
Input voltage at pin TANK (internal oscillator overdriven) |
5 |
VTANK |
1 |
Vpp |
Current at IF output |
19 |
IIF |
4.0 |
mA |
Reference input voltage (diff.) |
15 |
OSCB |
1 |
Vpp |
Control input voltage |
1, 2, 10 and 27 |
CI, SI1, SI2, PD |
-0.3 to +9.5 |
V |
PLCK output voltage |
14 |
IPLCK |
0.5 |
mA |
PLCK output current |
14 |
VPLCK |
-0.3 to +5.5 |
V |
Junction temperature |
Tj |
125 |
||
Storage temperature |
Tstg |
-40 to +125 |
The U2730B-N is a monolithically integrated L-band down-converter circuit fabricated with Atmel's advanced UHF5S technology. U2730B-N covers all functions of an L-band down-converter in a DAB receiver. The U2730B-N includes a gain-controlled amplifier, a gain-controlled mixer, an output buffer, a gain control block, a power save function for the analog part, an L-band oscillator and a complete frequency syntheziser unit. The frequency syntheziser block consists of a reference oscillator/buffer, a reference divider, an RF divider, a tri-state phase detector, a loop filter amplifier, a lock detector, a programmable charge pump, a test interface and a control interface.