Texas Instruments TRF3722 EVM, Руководство пользователя

Страница: 8 / 69

8
TRF3722
SLWS245B – MAY 2014 – REVISED FEBRUARY 2017 www.ti.com
Product Folder Links: TRF3722
Submit Documentation Feedback
Copyright © 2014–2017, Texas Instruments Incorporated
Electrical Characteristics (continued)
Over recommended operating conditions: VCC = 3.3 V, VCC_TK = 5 V, T
A
= 25°C. Optimized bias settings as per Table 16 .
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
(2) Divided-down ranges minimum and maximum values are typical but are not specified.
VCO
f
VCO
Typical VCO frequency range
(2)
2050 4100 MHz
K
V
VCO gain VTUNE = 1.1 V 30 MHz/V
PN
VCO Open Loop Phase Noise;
f
VCO
= 3600 MHz;
TX Div = Div-by-1;
f
OUT
= 3600 MHz
VTUNE = 1.1 V
10 kHz –74
dBc/Hz
100 kHz –109
1 MHz –135
10 MHz –152
40 MHz –156
VCO Open Loop Phase Noise;
f
VCO
= 3600 MHz;
TX Div = Div-by-2;
f
OUT
= 1800 MHz;
VTUNE = 1.1 V
10 kHz –80
dBc/Hz
100 kHz –115
1 MHz –141
10 MHz –156
40 MHz –158
LO OUTPUT
f
OUT
Typical output frequency range
(2)
Divide by 1 2050 4100
MHz
Divide by 2 1025 2050
Divide by 4 512.5 1025
Divide by 8 256.25 512.5
P
LO
Output power SE at 1800 MHz, OUTBUF_BIAS = 2 1 dBm
External VCO input Frequency Range 250 4200 MHz
External VCO Input Level –10 0 10 dBm
CLOSE LOOP PLL OR VCO
Integrated Phase Noise
Frac-N; PFD = 15.36 MHz; f
OUT
=
3532.89 MHz;
Integration BW =1 kHz to 10 MHz; SSB -45.2 dB
Int-N; PFD = 2.56 MHz; f
OUT
= 1799.68
MHz;
Integration BW = 500 Hz to 20 MHz; SSB -49.8 dB
VCO Close Loop Phase Noise;
f
VCO
= 3600 MHz;
TX DIV = Div-by-2;
f
OUT
= 1800 MHz;
Integer Mode, PFD = 2.56MHz
10 kHz –96
dBc/Hz
100 kHz –114
1 MHz –140
10 MHz –156
40 MHz –158
DIGITAL INTERFACE
V
IH
High Level Input Voltage 2 3.3 V
V
IL
Low Level Input Voltage 0 0.8 V
V
OH
High Level Output Voltage Referenced to VCC_DIG 0.8 x VCC V
V
OL
Low Level Output Voltage Referenced to VCC_DIG 0.2 x VCC V