Order this document by MRFIC0954/D
MRFIC0954
800 MHz CDMA
Upmixer/Exciter
The MRFIC0954 is an integrated upmixer and exciter amplifier designed
specifically for dual–mode CDMA/AMPS digital cellular radios. The exciter
amplifier incorporates a temperature compensated linear gain control. The
design utilizes Motorola’s RF BiCMOS1 process to yield superior
performance in a cost effective monolithic device.
800 MHz
DUAL–MODE CDMA/AMPS
UPMIXER/EXCITER
SEMICONDUCTOR
TECHNICAL DATA
•
•
•
•
•
•
Designed for Dual–Mode Operation
Total Supply Current CDMA Mode = 55 mA Typical
Total Supply Current FM Mode = 35 mA Typical
30 dB Dynamic Range Gain Control on Exciter
Upmixer Output IP3 = 11 dBm Typical
Exciter Output IP3 = 28 dBm Typical
Supply Voltage Range = 2.7 to 3.6 V
Cascaded Adjacent Channel Power (Pout = 6.0 dBm)
@ 885 kHz Offset = –60 dBc Typical
@ 1.98 MHz Offset = –72 dBc Typical
20
1
(Scale 2:1)
PLASTIC PACKAGE
CASE 948M
(TSSOP–20EP, Tape & Reel Only)
PIN CONNECTIONS
IF In+
Enable1
LO In
FM/CDMA Select
N.C.
VCC3
Gnd
LO Buffer
IF In +
IF In –
Exciter Out
RF Out +
RF Out –
(Top View)
Exciter In
VCC1
RF Vcntrl
1
2
3
4
5
6
7
8
9
20 IF In–
19 VCC4
18 RF Out +
17 RF Out –
16 Gnd
15 Gnd
14 Gnd
13 Exciter In
12 VCC2
11 Enable2
Simplified Block Diagram
LO
Exciter Out 10
Bias
Gain
Control
FM/CDMA
Select
RF Vcntrl
ORDERING INFORMATION
Device
MRFIC0954R2
Operating
Temp Range
TA = –40 to 85°C
Package
TSSOP–20EP
This device contains 305 active transistors.
©
Motorola, Inc. 2000
Rev 3
MOTOROLA WIRELESS SEMICONDUCTOR
SOLUTIONS – RF AND IF DEVICE DATA
1
MRFIC0954
MAXIMUM RATINGS
Rating
Supply Voltage
IF Input
LO Input
Operating Temperature
Storage Temperature
Symbol
VCC
IF In+, IF In–
LO
TA
Tstg
Value
5.0
10
10
–40 to 85
–65 to 150
Unit
V
dBm
dBm
°C
°C
NOTES:
1. Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the limits in the Recommended Operating
Conditions and Electrical Characteristics tables or Pin Descriptions section.
2. Meets Human Body Model (HBM)
≤50
V and Machine Model (MM)
≤40
V. This device is rated
Moisture Sensitivity Level (MSL) 4. ESD data available upon request.
RECOMMENDED OPERATING CONDITIONS
Characteristic
Supply Voltage
RF Frequency Range
IF Frequency Range
LO Frequency Range
Gain Control Voltage Range
Symbol
VCC
fRF
fIF
fLO
Vcntrl
Min
2.7
800
70
600
0.1
Typ
–
–
–
–
–
Max
3.6
960
250
1200
1.7
Unit
V
MHz
MHz
MHz
V
ELECTRICAL CHARACTERISTICS
(VCC = 2.7 V, PLO = –15 dBm @ 967 MHz, PIF = –21 dBm (differential) @ 130 MHz,
VEnable = VTxEnable = 2.4 V, TA = 25°C, Test Circuit in Figure 1, unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
CASCADE PERFORMANCE
(Filter included between RF Out and Exciter input. Filter has an insertion loss of 4.0 dB) For CDMA mode
FM/CDMA Select = 2.7 V. For FM mode FM/CDMA Select = 0 V.
Output Power
CDMA Mode (Vcntrl = 1.7 V)
FM Mode (PIF = –12 dBm (differential) )
CDMA Mode (Vcntrl = 1.3 V)
Dynamic Range (RFVcntrl = 0.1 to 1.7 V)
Adjacent Channel Power (CDMA Mode, Pout = 6.0 dBm, PIF = –21 dBm
(differential) )
@ 885 kHz Offset
@ 1.98 MHz Offset
Supply Current
CDMA Mode, PIF = –21 dBm (differential), Pout = 6.0 dBm
(set by Vcntrl)
FM Mode, PIF = –12 dBm (differential), Pout = 11 dBm (set by Vcntrl)
MIXER SECTION
Conversion Gain
Noise Figure
Output Third Order Intercept Point
EXCITER SECTION
Gain (No Attenuation)
Noise Figure
AGC Dynamic Range
Output Third Order Intercept Point
GC
NF
DR
OIP3
–
–
25
–
28
5.0
38
25
–
–
–
–
dB
dB
dB
dBm
GC
NF
OIP3
–
–
–
7.0
15
11
–
–
–
dB
dB
dBm
Pout
6.0
11
3.0
DR
ACPR
–
–
ICC
–
–
55
35
70
50
–60
–72
–52
–62
mA
25
10
14
7.0
38
–
–
–
–
dB
dBc
dBm
2
MOTOROLA WIRELESS SEMICONDUCTOR
SOLUTIONS – RF AND IF DEVICE DATA
MRFIC0954
PIN FUNCTION DESCRIPTION
Pin
1
2
3
4
Function
IF In+
Enable 1
(See Table 1)
LO In
FM/CDMA Select
Description
Mixer IF input pin. Input impedance is 500
Ω.
Enable pin. A logic
″High″
(>2.4 V) enables entire chip and
″Low″
(<0.4 V)
disables chip.
Mixer LO input pin.
FM/CDMA select pin. Logic
″High″
(>2.4 V) selects CDMA
mode for increased linearity and output power.
″Low″
(<0.4 V) selects FM mode for reduced current consumption.
No Connection
Supply Voltage.
Ground connection.
Supply Voltage
RF AGC control pin. A 30 dB dynamic range can be
acheived by adjusting voltage from 0.1 V (low gain) to 1.7 V
(high gain).
RF exciter amplifier output pin.
Tx Enable pin. A logic
″High″
(>2.4 V) enables Tx path and
″Low″
(<0.4 V)
disables Tx path except LO Buffer.
Supply Voltage
RF exciter amplifier input pin.
Ground connection.
Ground connection.
Ground connection.
Mixer RF output pin.
Mixer RF output pin.
Supply Voltage
Mixer IF input pin. Input impedance is 500
Ω.
2.7 to 3.6
–24 dBm (Typ)
2.7 to 3.6
–
2.7 to 3.6
0.1 to 1.7
Voltage On (V)
–24 dBm (Typ)
2.4 to 3.6
–15 dBm (Typ)
0 to 0.4
Voltage Off (V)
5
6
7
8
9
N.C.
VCC3
Gnd
VCC1
RF AGC Control
Voltage
Exciter Out
Enable 2
(See Table 1)
VCC2
Exciter In
Gnd
Gnd
Gnd
RF Out–
RF Out+
VCC4
IF In–
10
11
12
13
14
15
16
17
18
19
20
–
2.4 to 3.6
2.7 to 3.6
–
–
–
–
0 to 0.4
Table 1. Enable Truth Table
Enable 1
0
0
1
1
Enable 2
0
1
0
1
Disabled
Not Applicable
Standby Mode: Disables
mixer/exciter, except LO buffer
Tx Enabled
Mode
MOTOROLA WIRELESS SEMICONDUCTOR
SOLUTIONS – RF AND IF DEVICE DATA
3
MRFIC0954
Figure 1. Applications Circuit
L7
IF In–
C18
C17
V CC4
L6
C1
C2
Enable
LO
L2
NC
C3
C4
1
2
3
4
FM/CDMA
VCC3
5
6
7
8
VCC1
C5
RF Vcntrl
C7
Exciter Out
L4
VCC Exc
C8
C9
Tx EN
C6
L3
9
10
Exciter
RF AGC
LO Buffer
Mixer
20
19
18
17
16
15
14
13
12
11
V CC2
C10
C11
R1
Exciter In
C12
L5
C13
C14
RF Out
C15
C16
L1
IF In+
C1, C18
C2, C17
C3 , C5, C8, C11, C16
C4, C6, C9, C10, C12, C15
C7
C13
C14
1.0 nF
4.7 pF
10 nF
100 pF
4.3 pF
1.6 pF
1.3 pF
L1, L7
L2
L3 , L4, L6
L5
R1
220 nH
15 nH
6.8 nH
1.0 nH
100
Ω
NOTES:
1. IF ports matched to 50
Ω
for testing purposes.
2. L3 and C6 form part of RFAGC/Exciter interstage match.
3. L5 can be varied to change gain.
4
MOTOROLA WIRELESS SEMICONDUCTOR
SOLUTIONS – RF AND IF DEVICE DATA
MRFIC0954
Figure 2. Gain versus
Frequency (FM Mode)
26
25.5
25
GAIN (dB)
24.5
24
23.5
23
824
85°C
VCC = 2.7 V
Vcntl = 1.7 V
Pin = –21 dBm
829
834
839
844
849
27
TA = 25°C
–40°C
GAIN (dB)
29
85°C
VCC = 2.7 V
Vcntl = 1.7 V
Pin = –21 dBm
829
834
839
844
849
33
TA = –40°C
31
25°C
Figure 3. Gain versus
Frequency (CDMA Mode)
25
824
f, FREQUENCY (MHz)
f, FREQUENCY (MHz)
Figure 4. Gain versus
LO Power (FM Mode)
26
25
24
TA = 85°C
23
22
21
–20
VCC = 2.7 V
Vcntl = 1.7 V
fLO = 966 MHz
–18
–16
–14
–12
–10
25°C
–40°C
GAIN (dB)
GAIN (dB)
33
32
31
30
29
28
27
26
25
–20
Figure 5. Gain versus
LO Power (CDMA Mode)
TA = –40°C
25°C
85°C
VCC = 2.7 V
Vcntl = 1.7 V
fLO = 966 MHz
–16
–14
–12
–10
–18
PLO, LO POWER (dBm)
PLO, LO POWER (dBm)
Figure 6. LO Feedthrough versus
Control Voltage (FM Mode)
–10
–15
–20
–25
–30
–35
–40
–45
–50
–55
0
0.2
0.4
0.6
0.8
1.0
1.2
85°C
VCC = 2.7 V
PLO = –15 dBm
fLO = 966 MHz
1.4
1.6
1.8
25°C
TA = –40°C
LO FEEDTHROUGH (dBm)
LO FEEDTHROUGH (dBm)
–10
–15
–20
–25
–30
–35
–40
–45
–50
–55
0
0.2
Figure 7. LO Feedthrough versus
Control Voltage (CDMA Mode)
TA = –40°C
25°C
85°C
VCC = 2.7 V
PLO = –15 dBm
fLO = 966 MHz
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
Vcntrl, CONTROL VOLTAGE (V)
Vcntrl, CONTROL VOLTAGE (V)
MOTOROLA WIRELESS SEMICONDUCTOR
SOLUTIONS – RF AND IF DEVICE DATA
5
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