Document Outline
- Features
- Applications
- Table of Contents
- Description
- Pin Information
- Absolute Maximum Ratings
- Handling Precautions
- Operating Ranges
- Electrical Specifications
- RSSI
- Quadrature Detector
- Test Circuit Diagram
- Characteristic Curves
- Outline Diagram
- Manufacturing Information
- Ordering Information
- Figures
- Figure 1. General Block Diagram
- Figure 2. Detailed Block Diagram with Pinout
- Figure 3. RSSI Out vs. IF1IN Power
- Figure 4. Quadrature Detector
- Figure 5. L/C Tank Equivalent Circuit
- Figure 6. Audio Output vs. IF Frequency, 18 kohm Quad Tank Resistor
- Figure 7. Audio Output vs. IF Frequency, 33 kohm Quad Tank Resistor
- Figure 8. Audio Output vs. IF Frequency, Quad Tank Resistor Removed
- Figure 9. Test Circuit Diagram
- Figure 10. Icc vs. Vcc
- Figure 11. Icc vs. Enable Voltage
- Figure 12. First IF Mixer Output Compression
- Figure 13. First IF Mixer: LO Rejection at IF Input vs. IF1LO
- Figure 14. First IF Mixer: Conversion Voltage Gain vs. Frequency IF1IN
- Figure 15. First IF MIxer: IF1OUT vs. IF1IN
- Figure 16. First IF Mixer Bandwidth
- Figure 17. First IF Mixer: Significant Signals vs. Power IF1IN
- Figure 18. First Mixer and Digital Second IF Section Noise Figure vs. IF1IN Power
- Figure 19. First Mixer and Digital Second IF Section Gain Compression vs. I Output (Single-Ended)
- Figure 20. First Mixer and Digital Second IF Section Gain Compression vs. I Output Power
- Figure 21. First Mixer and Digital Second IF Section Gain vs. AGC Input (-110 dBm)
- Figure 22. First Mixer and Analog Second IF Section Audio vs. IF1IN Power (2.7 Vcc)
- Figure 23. First Mixer and Analog Second IF Section Audio vs. IF1IN Power (3.3 Vcc)
- Figure 24. First Mixer and Analog Second IF Section Audio vs. IF1IN Power (4.1 Vcc)
- Figure 25. First Mixer and Analog Second IF Section SINAD vs. IF1IN Power
- Figure 26. First Mixer and Analog Second IF Section AM Sensitivity (Relative Audio Out) vs. IF1IN Power
- Figure 27. Audio Output vs. Temperature
- Figure 28. Digital Second IF Section SINAD, Output Voltage, and Compression vs. Output Power
- Figure 29. EVM/Phase/Offset vs. IF1 Input Level
- Tables
- Table 1. Pin Descriptions
- Table 2. Digital Control Pin Truth Table
- Table 3. W3030 Operating Ranges
- Table 4. dc and Logic Parameters
- Table 5. First IF Mixer/Amplifier Section
- Table 6. Analog Second IF Amplifier, Limiter, RSSI, FM Detector Section
- Table 7. Digital Second IF Amplifier, AGC, Quadrature Demodulator Section
- Table 8. Digital Gain and First IF Mixer Input to Baseband
- Contact Us
W3030 3 V Dual-Mode IF Cellular Receiver
Data Sheet
April 1999
Features
n
Proven double conversion architecture:
First IF capability: 10 MHz to over 1000
MHz
Second IF capability: 0.2 MHz to 2.0 MHz
n
Dual second IF amplifiers and demodulators:
Analog-mode limiting amplifier and FM
quadrature detector
Digital-mode linear AGC amplifiers with
dual-mixer I & Q quadrature demodulator
n
Accurate, onboard local oscillator phase splitter
for digital quadrature demodulator
n
Four enable/powerdown modes, selectable from
two digital control pins, allow operation with
minimal supply current
n
Low supply current
n
Analog received signal strength indicator (RSSI)
available
n
Analog AGC for digital-mode IF amplifiers
n
Over 100 dB combined voltage gain
Applications
n
IS-136 (North American dual-mode) cellular
radio portable and mobile terminals
n
Cellular radio base stations
n
Digital satellite communications
n
Multisymbol signaling receivers
V
CC
GND
ENBA
ENBD
VCM
IF INPUT
4
AUDIO
DIGITAL SECTION
ANALOG SECTION
I
CLK
Q
RSSI
LO
VARIABLE GAIN
AGC
LOGIC AND
BIAS
CONTROL
Figure 1. General Block Diagram
Data Sheet
W3030 3 V Dual-Mode IF Cellular Receiver
April 1999
Lucent Technologies Inc.
2
Table of Contents
Features...............................................................................................................................................................1
Applications .........................................................................................................................................................1
Description ...........................................................................................................................................................3
Pin Information.....................................................................................................................................................5
Absolute Maximum Ratings..................................................................................................................................7
Handling Precautions ...........................................................................................................................................7
Operating Ranges ................................................................................................................................................8
Electrical Specifications .......................................................................................................................................8
RSSI ..................................................................................................................................................................11
Quadrature Detector...........................................................................................................................................11
Quad Tank S-Curves ......................................................................................................................................12
Test Circuit Diagram ..........................................................................................................................................14
Characteristic Curves .........................................................................................................................................15
Outline Diagram .................................................................................................................................................20
32-Pin TQFP......................................................................................................................................................20
Manufacturing Information .................................................................................................................................21
Ordering Information ..........................................................................................................................................21
Data Sheet
April 1999
W3030 3 V Dual-Mode IF Cellular Receiver
Lucent Technologies Inc.
3
Description
The W3030 is a monolithic integrated circuit that
provides most of the receive path functions required
to meet the IS-136 (and IS-54) standard. The W3030
converts FM or digitally modulated IF carriers up to
200 MHz and provides required IF gain and separate
baseband detectors for the two modulation modes.
The W3030 is organized into three subfunctions (see
Figure 2):
1. First IF mixer/amplifier
2. Analog second IF
3. Digital second IF sections
(Note that the electrical specification tables
correspond to each subfunction.)
Each section has a buffered output to allow for
external filtering, which also provides flexibility in
system architecture selection. The first IF mixer
section provides 30 dB of fixed voltage conversion
gain (power gain = 17 dB). The first IF mixer also
performs down-conversion to the 0.2 MHz--2.0 MHz
range, which allows the use of inexpensive ceramic
filters at two points in the signal path. In the second IF
section, the signal path may be split between two
parallel amplifier/demodulator sections. In the analog
second IF, there is a 40 dB amplifier followed by a
60 dB hard-limiting amplifier and an FM quadrature
detector (noncoherent discriminator). The signal path
between the 40 dB and 60 dB amplifier stages is
brought off-chip for external filtering purposes. In
digital mode, an AGC amplifier provides gain between
10 dB and 80 dB. The digital signal is demodulated in
double-balanced mixers that are fed with an external
local oscillator (LO) signal. The external LO passes
through a divide-by-four counter to provide the final IF
LO frequency. This architecture greatly reduces the
possibility of feedback of the external LO signal to the
IF input, which would cause dc offsets at the I & Q
outputs. This circuit also provides a 90
phase shift of
the LO that is independent of duty cycle. The resulting
I & Q differential pairs can be level-shifted using the
VCM input pin, providing flexibility in interfacing to
digital processing ICs.
A pair of logic inputs allows the device to be put into a
powerdown mode and one of two partially enabled
modes (analog or digital only), or a fully enabled
mode, allowing the use of analog RSSI while in digital
receive mode.
Data Sheet
W3030 3 V Dual-Mode IF Cellular Receiver
April 1999
Lucent Technologies Inc.
4
Description
(continued)
1 k
48 k
50 k
2 k
1 k
50 k
49
k
50 k
2 k
48 k
GND
2
IF
D
IN
IF
D
IN
IF
D
ACG
VCM
AGC
I
I
IF
2
OUT
IF
2
ACG
IF
2
IN
IF
2
IN
GND
1
IF
1
OUT
IF
1
LO
IF
1
LO
32
31
30
29
28
27
26
25
9
10
11
12
13
14
15
16
RSSI
AUDIO
QUAD
IFA
OUT
IFA
ACG
IFA
IN
IFA
IN
V
CC
2
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
CLK
Q
Q
ENBA
ENBD
IF1
IN
IF1
IN
V
CC
1
AGC AMP I/Q DEMODULATOR
FIRST IF MIXER/AMPLIFIER
10 MHz--1000 MHz
SECOND IF AMP
0.2 MHz--2.0 MHz
FM
DEMOD &
RSSI
ANALOG SECOND
IF LIMITER
1 k
4
Figure 2. Detailed Block Diagram with Pinout
Data Sheet
April 1999
W3030 3 V Dual-Mode IF Cellular Receiver
Lucent Technologies Inc.
5
Pin Information
Table 1. Pin Descriptions
Pin
Number
Pin Name
Pin Description
1
RSSI
Received Signal Strength Indicator. Provides logarithmic (dB-linear) dc output
voltage.
2
AUDIO
Audio Output. Audio output of FM detector.
3
QUAD
Quad Input. Input to FM detector from parallel LC quad coil.
4
IFA
OUT
Analog Output. Output of analog section limiting amplifiers; couple to quad coil
and pin 3 (QUAD) with 10 pF capacitor.
5
IFA
ACG
Analog Signal Ground. Signal ground for analog section limiting amplifier;
connect to ground with 0.1 F capacitor.
6
IFA
IN
Analog Mode Limiter Input. Differential input to analog IF limiting amplifier; to
be directly coupled to dielectric sources such as ceramic filters. Pin 6 is
approximately 1 k
with pin 5 ac-grounded.
7
IFA
IN
Analog Mode Limiter Input (Inverting). Differential input to analog IF limiting
amplifier. To be ac-grounded.
8
V
CC
2
Second IF Power Supply. Positive power supply connection for both analog
and digital second IF amplifiers and demodulators.
9
IF2
OUT
Second IF Output. Output of 40 dB second IF amplifier; directly couple to
dielectric loads such as ceramic filters. Includes internal 1 k
termination
resistor.
10
IF2
ACG
Second IF Signal Ground. Signal ground for 40 dB second IF amplifier;
connect to ground with 0.1 F capacitor.
11
IF2
IN
Second IF Input. Differential input to 40 dB second IF amplifier; to be directly
coupled to dielectric sources such as ceramic filters. Pin 11 is approximately
2 k
with pin 10 ac-grounded.
12
IF2
IN
Second IF Input (Inverting). Differential input to 40 dB second IF amplifier. To
be ac-grounded.
13
GND
1
First IF Mixer Ground. Power supply (dc) ground for first IF mixer section.
14
IF1
OUT
First IF Mixer Output. Output of first IF mixer/amplifier section; to be directly
coupled to dielectric loads such as ceramic filters. Includes internal 1 k
termination resistor.
15
IF1
LO
First IF Mixer Logical Input (Inverting). Differential input to first IF mixer local
oscillator; to be capacitively coupled to sources with a dc level offset.
16
IF1
LO
First IF Mixer Logical Input. Differential input to first IF mixer local oscillator.
To be ac-grounded.
17
V
CC
1
First IF Mixer Power Supply. Positive power supply connection for first IF
mixer/amplifier section.
18
IF1
IN
First IF Mixer Input (Inverting). Differential input to first IF mixer/amplifier
section; to be ac-coupled to ground or source.
19
IF1
IN
First IF Mixer Input. Differential input to first IF mixer/amplifier section.
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