LT5534ESC6 Linear Technology, LT5534ESC6 Datasheet - Page 6

• Manufacturer Part Number: LT5534ESC6
• Manufacturer: Linear Technology

Specifications of LT5534ESC6

• Pin Count: 6
• Screening Level: Industrial
• Package Type: SC-70
• Lead Free Status / Rohs Status: Not Compliant

APPLICATIO S I FOR ATIO
TEST CIRCUIT
LT5534
The LT5534 is a logarithmic-based detector, capable of
measuring an RF signal over the frequency range from
50MHz to 3GHz. The 60dB linear dynamic range is achieved
with very stable output over the full temperature range from
–40°C to 85°C. The absolute variation over temperature is
typically within ±1dB over a 47dB dynamic range at 1.9GHz.
RF Input Port
The RF port is internally biased at V
should be DC blocked when connected to ground or other
6
Figure 2. Component Side Silkscreen of Evaluation Board
U
U
V
OUT
W
EN
CC
-0.18V. The pin
OPTIONAL
REF DES
Figure 1. Evaluation Circuit Schematic
C5
OPTIONAL
C1
C2
C3
C5
R1
R2
0Ω
R2
U
VALUE
100pF
0.1µF
47Ω
1nF
0Ω
1
2
3
EN
GND
V
0402
0603
0603
0603
0402
0603
SIZE
OUT
LT5534
PART NUMBER
AVX 04025C102JAT2A
TAIYO YUDEN TMK107BJ104KA
AVX 06035C101KAT2A
OPTIONAL
OPTIONAL
OPTIONAL
GND
V
matching components. A 47Ω resistor (R1) connected to
ground will provide better than 10dB input return loss up
to 2.5GHz. An additional 2nH inductance in series with R1
will provide improved input matching up to 3GHz. The
impedance vs frequency of the RF input is detailed in
Table 1.
The approximate linear RF input power range of the
LT5534 is from –62dBm to –2dBm with a 50Ω source
impedance. However, this range can be adjusted either
upward or downward to tailor for a particular application
RF
CC
6
5
4
Figure 3. Component Side Layout of Evaluation Board
1nF
C1
C3
100pF
R1
47Ω
OPTIONAL
5534 F01
C2
0.1µF
V
CC
J1
RF
5534fa