1. General description
The TFF1024HN is an integrated downconverter for use in Low Noise Block (LNB)
convertors in a 10.70 GHz to 12.85 GHz K
u
band satellite receiver system.
2. Features and benefits
Low current consumption integrated pre-amplifier, mixer, buffer amplifier and
PLL synthesizer
Flat gain over frequency
Single 5 V supply pin
Low cost 25 MHz crystal
Crystal controlled LO frequency generation
Switched LO frequency (selectable to 9.75 GHz, 10.00 GHz, 10.25 GHz, 10.55 GHz,
10.60 GHz, 10.75 GHz, 11.25 GHz or 11.30 GHz) with a 25 MHz crystal as reference
Other LO frequencies within the 9.75 GHz to 11.30 GHz range can be realized by
using an alternative reference frequency
Low phase noise
Low spurious
Low external component count
Alignment-free concept
ESD protection on all pins
3. Applications
K
u
band LNB converters for VSAT and digital satellite reception (DVB-S / DVB-S2)
4. Quick reference data
TFF1024HN
Integrated mixer oscillator PLL for satellite LNB
Rev. 1 — 13 January 2015 Product data sheet
'
+
9
4
)
1
Table 1. Quick reference data
9.75 GHz
f
LO
11.30 GHz; operating conditions of Table 6 apply.
Symbol Parameter Conditions Min Typ Max Unit
V
CC
supply voltage RF input and IF output AC coupled
[1]
4.5 5 5.5 V
I
CC
supply current RF input and IF output AC coupled
[1]
-5670mA
NF
SSB
single sideband noise figure f
IF
= 1450 MHz; T
amb
= 25 C;
10.55 GHz f
LO
10.60 GHz
-9.011.0dB
f
RF
RF frequency
[2]
10.70 - 12.85 GHz
