T0797.pdf 데이터시트 (총 10 페이지) - 파일 다운로드 T0797 데이타시트 다운로드

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Features
Gain control in 20-dB steps
Very low I/Q amplitude and phase errors
High input P1dB
Buffered IF OUT available through baseband output
Applications
Infrastructure digital communication systems
GSM/cellular transceivers
ISM band transceivers
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Electrostatic sensitive device.
Observe precautions for handling.
65 - 300 MHz
SiGe IF
Receiver /
Demodulator
Description
The T0797 is a multi-purpose demodulator RFIC. The silicon monolithic integrated cir-
cuit is a designed in Atmels advanced SiGe technology. This demodulator is capable
of both quadrature demodulation or direct IF output. Features include switchable gain
control on a frequency range from 65 MHz to 300 MHz. The device performs a very
low amplitude as well as phase error and allows high input P1dB. The T0797 targets a
variety of system applications for communications including 3G wireless.
T0797
Block Diagram
Figure 1.
GC1
5
GC2
4
IFP 8
IFN 9
2
BBIP
1 BBIN
ϕ
13 12
16 BBQP
15 BBQN
Rev. A2, 03-Dec-01
Preliminary Information 1 (10)

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Preliminary Information
Ordering Information
Extended Type Number
T0797
Package
TSSOP16
Pin Configuration
Figure 2.
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BBIN
BBIP
VCC
GC2
GC1
GND
VCC
IFP
1
2
3
4
5
6
7
8
16 BBQP
15 BBQN
14 VCC
13 LOP
12 LON
11 GND
10 VCC
9 IFN
Pin Description
Pin Symbol
1 BBIN
2 BBIP
3 VCC
4 GC2
5 GC1
6 GND
7 VCC
8 IFP
9 IFN
10 VCC
11 GND
12 LON
13 LOP
14 VCC
15 BBQN
16 BBQP
Baseband I-axis negative output
Baseband I-axis positive output
5 V power supply
Gain control input, stage 2
Gain control input, stage 1
Ground
5 V power supply
IF positive input
IF negative input
5 V power supply
Ground
Local oscillator, negative input
Local oscillator, positive input
5 V power supply
Baseband Q-axis negative output
Baseband Q-axis positive output
Function
Remarks
2 (10) T0797
Rev. A2, 03-Dec-01

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T0797
Absolute Maximum Ratings
All voltages are referred to GND.
Parameter
Symbol
Supply voltage
LO input
VCC
LOP, LON
IF input
IFN, IFP
Operating temperature
TOP
Storage temperature
Tstg
Note: The part may not survive all maximums applied simultaneously
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Thermal Resistance
Parameter
Junction ambient
Symbol
RthJA
Value
5.5
10
10
-40 to +85
-65 to +150
Value
tbd
Unit
V
dBm
V
°C
°C
Unit
K/W
Electrical Characteristics
Test conditions: VCC = 5 V, Tamb = 25°C, LO input: 0 dBm@200 MHz
IF input: @200.1 MHz, GC1 = 0, GC2 = 0; 0 dBm
IF input: @200.1 MHz, GC1 = 1, GC2 = 0; -20 dBm
IF input: @200.1 MHz, GC1 = 1, GC2 = 1; -40 dBm
No. Parameters
Test Conditions Pin Symbol Min. Typ. Max. Unit
1 IF input (I/Q mixing to baseband)
1.1 Frequency range
8, 9 f
65 120 - 300 MHz
220
1.2 Return loss
8, 9 RL
20 dB
1.3 Gain
1.4 Input P1dB
Gain set = high; GC1
= GC2 = 1
8, 9
8, 9
G
P1dB
35 dB
30 dBm
1.5 Input IP3
8, 9 IIP3
20 dBm
1.6 Noise figure
8, 9 NF
6 dB
1.7 Gain
1.8 Input P1dB
Gain set = high; GC1
= 1; GC2 = 0
8, 9
8, 9
G
P1dB
15 dB
10 dBm
1.9 Input IP3
8, 9 IIP3
0 dBm
1.10 Noise figure
8, 9 NF
3 10
dB
1.11 Gain
1.12 Input P1dB
Gain set = high; GC1
= GC2 = 0
8, 9
8, 9
G
P1dB
5 dB
10 dBm
1.13 Input IP3
8, 9 IIP3
20 dBm
1.14 Noise figure
8, 9 NF
30 dB
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Type*
B
D
A
C
B
D
A
C
B
D
A
C
B
D
Rev. A2, 03-Dec-01
Preliminary Information 3 (10)

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Preliminary Information
Electrical Characteristics
Test conditions: VCC = 5 V, Tamb = 25°C, LO input: 0 dBm@200 MHz
IF input: @200.1 MHz, GC1 = 0, GC2 = 0; 0 dBm
IF input: @200.1 MHz, GC1 = 1, GC2 = 0; -20 dBm
IF input: @200.1 MHz, GC1 = 1, GC2 = 1; -40 dBm
No. Parameters
Test Conditions Pin Symbol Min. Typ. Max. Unit
2 Stuck Mixer (DC to LO port – gain-controlled amplifier)
2.1 Frequency range
8, 9 f
65 120 - 300 MHz
220
2.2 Return loss
8, 9 RL
20 dB
2.3 Gain
www.DataS2h.e4et4U.Icnopmut P1dB
Gain set = high;
GC1 = GC2 = 1
8, 9 G
8, 9 P1dB
40 dB
26 dBm
2.5 Input IP3
8, 9 IIP3
16 dBm
2.6 Noise figure
8, 9 NF
6 dB
2.7 Gain
2.8 Input P1dB
Gain set = high;
GC1 = 1; GC2 = 0
8, 9 G
8, 9 P1dB
20 dB
6 dBm
2.9 Input IP3
8, 9 IIP3
4 dBm
2.10 Noise figure
8, 9 NF
9 dB
2.11 Gain
2.12 Input P1dB
Gain set = high;
GC1 = GC2 = 0
8, 9 G
8, 9 P1dB
0 dB
14 dBm
2.13 Input IP3
8, 9 IIP3
24 dBm
2.14 Noise figure
8, 9 NF
30 dB
3 I/Q Output
3.1 I/Q output frequency
range
1, 2,
15, 16
fI/Q
DC
500 MHz
3.2 I/Q output amplitude
error
1, 2,
15, 16
0.2
+0.2
dB
3.3 I/Q phase error
1, 2,
15, 16
2 +2 deg
3.4 I/Q output common
mode voltage
1, 2,
15, 16
2.5 V
3.5 I/Q output differential
offset voltage
1, 2,
15, 16
Voffset
10 mV
4 LO input
4.1 LO input level
4.2 Return loss
5 Miscellaneous
12, 13
PLO
3
0
+3 dBm
12, 13
RLLO
20
dB
5.1 Supply voltage
3, 7,
VCC
4.75
5
5.25
V
10, 14
5.2 Supply current
3, 7,
10, 14
ICC
180 mA
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Type*
B
D
A
C
B
D
A
C
B
D
A
C
B
D
D
A
A
A
A
D
D
A
A
4 (10) T0797
Rev. A2, 03-Dec-01

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Typical Device
Performance
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Figure 3. Gain vs. pin high-gain state (11)
T0797
35
34
33
32
31
30
-40 -38 -36 -34 -32 -30 -28 -26
Pin (dBm )
Figure 4. Gain vs. pin low-gain state (00)
-3
-4
-5
-6
-7
-8
0
5 10
Pin (dBm )
Figure 5. Gain vs. pin medium-gain state (10)
15
16
15
14
13
12
11
-20 -18 -16 -14 -12 -10 -8
Pin (dBm )
-6
Rev. A2, 03-Dec-01
Preliminary Information 5 (10)