A
FEATURES
聲 Integrated Monolithic Downconverter
聲 8 dB Noise Figure
聲 10 dB Conversion Gain
聲 High Linearity
聲 Small Size
聲 Low Cost
聲 High Reliability
DESCRIPTION
The ACD0900 MMIC is a high performance downconverter
fabricated entirely in GaAs. It is designed for use as the 2
nd
conversion stage in double-conversion tuners and cable
modems, downconverting 900 -1200 MHz RF inputs to a
fixed IF of 35 - 150 MHz (depending on LO frequency).
The IC incorporates a low noise amplifier, high linearity
double balanced mixer, phase splitter and oscillator in a
SOIC 16 lead surface mount package. The high degree of
functionality allows tuner manufactures to reduce size and
cost by lowering the component count and decreasing the
amount of production alignment steps, while significantly
improving performance and reliability.
OPERATING RANGES
PARAMETERS
Frequency
RF
LO
IF
V
DD
I
DD
Case Temperature
MIN
900
935
35
4.75
- 55
TYP
-
5.0
-
-
MAX
1200
1350
150
5.25
110
85
UNITS
MHz
Volts
MA
擄C
ACD0900S3C
VHF/UHF CATV/TV Tuner Downconverter
DATA SHEET - Rev . 0
S3C
16 Pin SOIC Package
ABSOLUTE MAXIMUM RATINGS
IF
1,
+5V
1
MXR
16
IF
2,
+ 5V
15
GND
GND
2
14
OSC
OUT
N/C
3
PHASE
SPLITTER
4
13
GND
12
PARAMETER
V
DD
/V
IF
/V
OSC
/V
LO
V
RF
/VT
CKT
*
Storage Temperature
Soldering Temperature
Soldering Time
RF Input Power
LO Input Power
Thermal Resistance
MIN.
-
-
- 55
-
-
-
-
-
MAX.
9
0
200
260
5
+ 10
+ 17
25
UNITS
Volts
Volts
擄C
擄C
Sec.
dBm
dBm
擄C/W
GND
5
OSC
11
T
CKT
RF
IN
6
LOW NOISE
AMP.
*V
TCKT
: Maximum voltage that may be applied to pin 11 of the
device without damaging the IC. DC blocking capacitor (1500pF)
between pin11 and the external tuning circuit is mandatory.
I
SET
10
7
+5V
GND
8
9
N/C
1
2
3
4
