MITEL SL2035MP1S, SL2035MP1T, SL2035, SL2035IG Datasheet
DS5117 Issue 2.1 October 1999
SL2035
High Performance Broadband Downconverter
Preliminary Information
Ordering Information
SL2035/IG/MP1S (Tubes)
SL2035/IG/MP1T (Tape and Reel)
Features
● Single Chip Broadband Solution
● Wide Dynamic Range RF Input
● Low Phase Noise Balanced Internal Local Oscillator
● High Frequency Range: 1 to 1·3 GHz
● ESD Protection 2kV min., MIL-STD-883B Method 3015
Cat.1 (Normal ESD handling procedures should be
observed)
Applications
● Double Conversion Tuners
● Digital Terrestrial Tuners
● Data Transmit Systems
● Data Communications Systems
The SL2035 is a bipolar, broadband wide dynamic range
mixer oscillator, optimised for applications as the
downconverter in double conversion tuner systems. It also
has application in any system where a wide dynamic range
broadband frequency converter is required.
The SL2035 is a single chip containing all necessary active
circuitry and simply requires an external tuneable resonant
network for the local oscillator. The block diagram is shown
in Figure 1 and pin connections are shown in Figure 2.
In normal application the signal from the high IF output is
connected to the RFIN and RFIN inputs. The RF input
preamplifier of the device is designed for low noise figure
within the operating region and for high intermodulation
distortion intercept so offering good signal to noise plus
composite distortion spurious performance.
The preamplifier also provides gain to the mixer section
and back isolation from the local oscillator section. The
approximate model of the RF input is shown in Figure 3.
Absolute Maximum Ratings
Supply voltage, V
CC
RF differential input voltage
All I/O port DC offset
Storage temperature
Junction temperature
Package thermal resistance
Chip to ambient, θ
JA
Chip to case, θ
JC
20·3V to 17V
2·5V
20·3 to VCC 10·3V
255°C to 1150°C
1150°C
20°C/W
80°C/W
The output of the preamplifier is fed to the mixer section
which is optimised for low radiation application. In this stage
the RF signal is mixed with the local oscillator frequency,
which is generated by an on-chip oscillator. The oscillator
block uses an external tuneable network and is optimised
for low phase noise. A typical application is shown in
Figure 5. This block also contains a buffer-amplifier to
interface with an external PLL to allow for frequency
synthesis of the local oscillator.
The IF output can be loaded either differentially or singleended. It is recommended that the differential load as in
Figure 5 is applied as this gives best noise performance. If
the output is loaded single-ended the noise figure will be
degraded. The approximate model of the IF output is shown
in Figure 4.
In application care should be taken to achieve symmetric
balance to the IF outputs to maximise intermodulation
performance.
Figure 1 SL2035 block diagram
RFIN
RFIN
LO2
LO1
IF1
IF2
PRSC1
2
SL2035
Figure 2 Pin connections - top view
Quick Reference Data
All data applies with circuit component values given in Table 1
Characteristic
Value Units
MP16
SL
2035
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
IF2
NC
GND
GND
GND
GND
RFIN
RFIN
IF1
NC
V
CC
/VCO
LO2
LO1
V
CC
/VCO
PRSC1
VCC/LNA
Electrical Characteristics
Tamb = 240°C to 185°C, VCC = 5V 65%, VEE = 0V. These characteristics are guaranteed by either production test or
design. They apply within the specified ambient temperature and supply voltage ranges unless otherwise stated.
Characteristic Conditions
Max.
Min.
Value
Typ.
Units
IF output pins 1 and 16 will be nominally
connected to VCC through the differential
balun load as in Figure 5
Operating condition only
See Figure 3
See Note 1
T
AMB
= 27°C, with input matching network
as in Figure 5.
With differential load
Differential voltage gain to 50Ω load on
output of impedance transformer as in
Figure 5
Channel bandwidth 8MHz within operating
frequency range
995-1305MHz
See Note 1
Application as Figure 5. See Note 2
Application as Figure 5
Application as Figure 5
Compatible with all standard IF frequencies,
determined by application
Pin
99
1300
221
13
12
14
0·5
220
125
1·4
288
TBA
60
9,11,14
7,8
7,8
7,8
7,8
12,13
1,16
1000
27
9
8
116
0·9
295
30
97
10
11
118
290
mA
MHz
dBµV
dB
dB
dB
dB
dB
dBµV
GHz
dBc/Hz
dBc/Hz
MHz
Supply current
Input frequency range
Composite peak input signal
Input impedance
Input return loss
Input noise figure
Conversion gain
Gain variation within channel
Through gain
IIP3
LO operating range
LO phase noise, 10kHz offset
LO phase noise floor
IF output frequency range
cont…
NOTES
1. Any two tones within RF operating range at 92dBµV with output load as in Figure 5.
2. Use low side LO injection.
RF input operating frequency range
Input noise Figure, SSB
Conversion gain
IIP3 input referred
P1dB input referred
LO phase noise at 10 kHz offset, fRF 1 to 1·3GHz, application as in Figure 5
1000-1300
12
11
118
106
,290
MHz
dB
dB
dBµV
dBc
dBc/Hz
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