Texas Instruments TRF1500PFB Datasheet
DUAL-BAND/DUAL-MODE PCS RECEIVER
SLWS041A – JANUARY 1998
D
Low-Noise Amplifier for Each Band
D
RF Mixer for Each Band With Image
Rejection Configuration for High Band
D
IF Amplifier for Both Low and High Bands
D
Operates From a Supply Voltage Range of
3.6 V to 4 V
description
The TRF1500 is a dual-band/dual-mode personal communications system (PCS) receiver for cellular
telephones operating dual mode (analog and digital) in the 800-MHz band and single mode (digital) in the
1900-MHz band.
uses an image rejection mixer for down conversion while the low band relies on an off-chip image rejection filter
between the LNA and mixer.
The local oscillator (LO) inputs additionally have buffered outputs that can be used in either single-ended or
differential mode for a phase-locked-loop (PLL) configuration. A state is also available that allows the low-band
LO to serve as the high-band LO through a mode-selectable frequency doubler.
A wideband mixer is also available for transmit loop architectures commonly used in advanced mobile phone
systems, global systems for mobile communications, and digital cellular systems.
The TRF1500 consists of a low-noise amplifier (LNA) and mixer for each band. The high band
D
Suitable for Portable Dual-Band/Dual-Mode
Cellular Telephones (IS136)
D
48-Pin Plastic Thin Quad Flatpack Package
(TQFP)
TRF1500
Power consumption is low and can be further reduced by operating the TRF1500 in sleep mode. Typical power
consumption for each receiver function is shown in Table 1.
The TRF1500 is available in a 48-pin plastic thin-quad flatpack package (TQFP) and is characterized for
operation from –30
_
C to 85 _C operating free-air temperature.
Table 1. Typical Power Consumption at V
FUNCTION TYPICAL POWER UNIT
Sleep mode 38 µW
Low band 85 mW
High band 190 mW
Transmit mixer 50 mW
Frequency doubler 12 mW
= 3.75 V
CC
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Copyright 1997, Texas Instruments Incorporated
1
TRF1500
DUAL-BAND/DUAL-MODE PCS RECEIVER
SLWS041A – JANUARY 1998
IR_ADJUST_C
GND
GND
47 46 45 44 4348 42
BIAS_ADJUST
TX_IF +
TX_IF –
GND
MIX_IN_LOW_BAND
GND
GND
TX +
TX –
GND
IR_ADJUST_D
1
2
3
4
5
6
V
7
CC
8
9
10
11
12
14 15
13
16
PFB PACKAGE
(TOP VIEW)
CC
GND
LOW_BAND_LNA_IN
HIGH_BAND_LNA_IN
GND
LOW_BAND_LNA_OUT
17 18 19 20
GND
40 39 3841
21
STRONG_SIGNAL
V
22 23 24
IR_ADJUST_B
37
36
IR_ADJUST_A
35
X2_ON
34
GND
33
GND
32
LOW_BAND_LO_IN
31
V
CC
30
DOUBLER_TANK
29
GND
28
HIGH_BAND_LO_IN +
27
HIGH_BAND_LO_IN –/RF_GND
TX_ON
26
V
25
CC
HI/LO
SYN_ON
HIGH_BAND_IF–
HIGH_BAND_IF+
GND
LOW_BAND_IF–
LOW_BAND_IF+
HIGH_BAND_LO–
HIGH_BAND_LO+
RX_ON
LOW_BAND_LO–
LOW_BAND_LO+
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
functional block diagram
LOW BAND LNA IN
LOW BAND IF +
LOW BAND IF –
LOW BAND LO +
LOW BAND LO –
43
17
18
22
23
Low
Low-Band IF
Buffer Amplifier
-Band LNA
Low-Band LO
Buffer Amplifier
TRF1500
DUAL-BAND/DUAL-MODE PCS RECEIVER
SLWS041A – JANUARY 1998
45
LOW BAND LNA OUT
Low
-Band
Mixer
5
MIX IN LOW BAND
Low-Band LO
Buffer Amplifier
32
LOW BAND LO IN
HIGH BAND LNA IN
HIGH BAND LO IN –
/RF GND
HIGH BAND LO IN +
TX +
TX –
DOUBLER
TANK
42
27
28
10
30
High-Band
LNA
Buffer
Amplifier
9
Amplifier
Image Reject Mixer
Buffer
High-Band IF
Buffer Amplifier
High-Band LO
Buffer Amplifier
Transmit
Mixer
Buffer
Amplifier
Doubler
15
HIGH BAND IF +
16
HIGH BAND IF –
20
HIGH BAND LO +
21
HIGH BAND LO –
2
TX IF +
3
TX IF –
Buffer
Amplifier
× 2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3
TRF1500
I/O
DESCRIPTION
DUAL-BAND/DUAL-MODE PCS RECEIVER
SLWS041A – JANUARY 1998
Terminal Functions
TERMINAL
NAME NO.
DOUBLER_TANK 30
HIGH_BAND_IF + 15
HIGH_BAND_IF – 16
HIGH_BAND_LNA_IN 42
HIGH_BAND_LO + 20
HIGH_BAND_LO – 21
HIGH_BAND_LO_IN –
/RF_GND
HIGH_BAND_LO_IN + 28
HI/LO 13 I High-band/low-band select; 1 = high band, 0 = low band
IR_ADJUST_A 36 I Image rejection adjustment
IR_ADJUST_B 37 I Image rejection adjustment
IR_ADJUST_C 48 I Image rejection adjustment
IR_ADJUST_D 12 I Image rejection adjustment
GND 4, 6, 8, 11, 19, 29, 33, 34,
LOW_BAND_IF + 17
LOW_BAND_IF – 18
LOW_BAND_LNA_IN 43
LOW_BAND_LNA_OUT 45
LOW_BAND_LO – 23
LOW_BAND_LO_IN 32
MIX_IN_LOW_BAND 5
BIAS_ADJUST 1 I Bias adjustment
RX_ON 24 I Receiver LNA/mixer power control
STRONG_SIGNAL 38 I Strong signal indication
SYN_ON 14 I VCO power control
TX + 9
TX – 10
TX_IF + 2
TX_IF – 3
TX_ON 26 I Transmit mixer/driver power control
V
CC
X2_ON 35 I Doubler power control
†
Pins without internal ESD protection
39, 41, 44, 46, 47
{
{
{
{
{
{
27
{
{
{
{
{
{
{
{
{
{
{
{
{
7, 25, 31, 40 I V
O Doubler output
O High-band IF noninverting output
O High-band IF inverting output
I High-band LNA input
O Buffered high-band LO noninverting output
O Buffered high-band LO inverting output
I High-band LO inverting input/RF GND
I High-band LO noninverting input
O Low-band IF noninverting output
O Low-band IF inverting output
I Low-band LNA input
O Low-band LNA output
O Buffered low-band LO inverting output
I Low-band LO input
I Low-band mixer input
I Transmit, noninverting input
I Transmit, inverting input
O Transmit IF, noninverting output
O Transmit IF, inverting output
Ground
CC
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TRF1500
DUAL-BAND/DUAL-MODE PCS RECEIVER
SLWS041A – JANUARY 1998
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
Power dissipation, T
Maximum operating junction temperature, T
Operating free-air temperature range, T
Storage temperature range, T
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
–0.3 V to 6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CC
= 25°C 350 mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A
–40°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
stg
A
150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jmax
recommended operating conditions
MIN NOM MAX UNIT
Supply voltage, V
High-level input voltage, V
Low-level input voltage, V
Operating free-air temperature, T
Operating junction temperature, T
CC
IH
IL
A
J
control state
CONTROL STATE (HI/L0, SYN ON, RX ON, TX ON, STRONG SIGNAL, X2) ACTIVE CIRCUITS
000000 Sleep mode
010000 Low-band LO input buffer on LB LO buffer
011000 Low-band receive normal LB LO buffer, LB LNA, LB mixer
011010 Low-band receive strong signal LB LO buffer,LB mixer
010100 Low-band transmit mixer LB LO buffer, LB TX mixer
011100 Low-band receive and transmit mixer LB LO buffer, LB LNA (on high), LB mixer, LB TX mixer
011110 Low-band transmit LB LO buffer, LB LNA (on high), LB mixer
010001 Double on LB LO buffer, doubler, HB LO buffer
011001 LB Receive normal, doubler on LB LO buffer, LB LNA, LB mixer, doubler
011011 LB receive strong signal, doubler on LB LO buffer, LB mixer, doubler
011111 LB transmit, doubler on LB LO buffer, LB LNA (on high), LB mixer, LB TX mixer
111011 High–band receive strong signal HB LO buffer, HB mixer, doubler
110000 High-band LO input buffer on HB LO buffer
111000 High-band receive normal HB LO buffer, HB LNA, HB mixer
111010 High-band receive strong signal HB LO buffer, HB mixer
111001 High-band receive frequency doubler on LB LO buffer, HB LNA, HB mixer, frequency doubler, HB
110100 High-band transmit normal HB LO buffer, HB TX mixer
110101 High-band transmit frequency doubler on LB LO buffer, HB TX mixer, frequency doubler, HB LO
LO buffer
buffer
3.6 3.75 4 V
3 V
–0.3 0.5 V
–30 85
–30 105
CC
V
_
C
_
C
†
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
5
TRF1500
DUAL-BAND/DUAL-MODE PCS RECEIVER
SLWS041A – JANUARY 1998
current consumption, VCC = 3.75 V, TA = 25°C
CONTROL STATE (HI/L0, SYN ON, RX ON, TX ON, STRONG SIGNAL, X2) MIN TYP MAX UNIT
000000 Sleep mode 20 100 µA
010000 Low-band LO input buffer on 3.3 4 mA
011000 Low-band receive normal 24 28 mA
110000 High-band LO input buffer on 4 5 mA
111000 High-band receive normal 56 62 mA
111001 High–band receive with doubler on 61 68 mA
010100 Low-band transmit mixer 13 16 mA
110100 High-band transmit mixer 17 21 mA
110101 High-band transmit mixer, doubler on 22 27 mA
electrical characteristics at 881.5 MHz (unless otherwise noted)
low-band LNA, mixer, saw filter, and IF buffer amplifier, VCC = 3.75 V†, TA = 25°C
PARAMETER
RF input frequency range 869 894 MHz
LO frequency range 979.52 1004.52 MHz
IF frequency 110.52 MHz
LO input power –5 dBm
Turn on/off time 65 µs
Power conversion gain 24 26 28 dB
Power conversion gain reduction Strong signal condition: LNA off 19 dB
Noise figure 2.5 3.0 dB
RF input return loss Z= 50 Ω 5.6 dB
LO input return loss 16.5 dB
LO buffer output power –10.3 dBm
Power leakage LO in to RF in –53 dBm
IIP3 (third-order intermodulation product) Referenced RF input port –9.7 dBm
1-dB RF input compression point Referenced RF input port –21 dBm
1-dB blocking point Blocking signal 45 MHz below f
†
Low-band LNA, mixer, and IF amplifier with an external surface-acoustic wave (SA W) filter having 3-dB insertion loss (IL). All specifications apply
for an IF output terminated into a 1-kΩ load. Parametric limits apply only when tested using the evaluation board or the recommended application
circuit.
TEST CONDITIONS
MIN TYP MAX UNIT
0
–18 dBm
6
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