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Renesas Electronics Components Datasheet

F159V Datasheet

Dual-Path RF Transmitter

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Dual-Path RF Transmitter IC
450MHz to 2800MHz
F159V
Datasheet
Description
The F159V is a Dual-Path RF Transmitter IC that has an operating
frequency range of 450MHz to 2800MHz. The device provides two
independent transmit paths each with 18.3dB typical maximum
gain with corresponding output noise floor of -142.5dBm/Hz,
+31dBm OIP3, and +14dBm output P1dB designed to operate with
a single +3.3V supply while consuming only 685mA DC current.
Each signal path includes a quadrature modulator, voltage variable
attenuator (VVA), digital step attenuator (DSA), and a fixed gain
amplifier. The device supports a total of 32dB VVA adjustment
range using a SPI-controlled 11-bit DAC, and each DSA has 31dB
gain control range in 1dB steps using SPI control.
An on-chip frequency synthesizer is shared by both paths and is
optimized for use in multi-carrier, multi-mode FDD and TDD base
station transmitters achieving GSM-grade performance. The
synthesizer offers both an integer mode and fractional mode. It
requires an external loop filter and an external reference oscillator
in the frequency range of 10MHz to 250MHz.
The F159V is packaged in a 10mm x 10mm, 68-pin QFN with 110Ω
differential drive from external I/Q DACs and single-ended 50Ω RF
output impedance for ease of integration into the signal-path lineup
for each of the two transmitter paths. Each path has independent
power supply control thereby allowing optimum power efficiency.
Competitive Advantage
High level of integration includes frequency synthesizer / PLL,
dual-path DSA, Modulator, and VVA
High reliability
Low DC current
Zero DistortionTM technology
GlitchFreeTM technology
Typical Applications
Application Multi-mode, Multi-carrier Transmitters
PCS1900 Base Stations
DCS1800 Base Stations
WiMAX and LTE Base Stations
UMTS/WCDMA 3G Base Stations
PHS/PAS Base Stations
Distributed Antenna Systems
Digital Radio
Features
Independent dual-path operation
RF output frequency: 450MHz to 2800MHz
18.3dB typical maximum gain (no attenuation)
+31dBm OIP3 (no attenuation)
+14dBm Output P1dB (no attenuation)
13dB NF corresponds to -142.5dBm/Hz output noise floor (no
attenuation)
Output noise floor -152.3dBm/Hz (VVA=14dB, DSA=1dB)
Channel Isolation: 47dB
DSA with 31dB total gain range in 1dB steps
Multiple VVAs with 32dB gain range controlled by on-chip SPI
controlled 11-bit DAC
Variable Gain amplifier (VGA) is comprised of DSAs, VVAs,
and a fixed-gain amplifier
I lead Q by 90 degrees for high side LO injection
Supports ZIF or CIF architectures
Common-mode voltage range: +0.1V to +0.8V
Integer-N and Fractional-N Synthesizer
Direct 110Ω differential driven from I/Q DAC
50Ω single-ended RF output impedance
Internal or external LO select
+3.3V supply voltage at 685mA (LO_Out not turned on)
Specified Case Temperature; -20°C to +115°C
10mm x 10mm, 68-pin QFN package
Block Diagram
Figure 1. Block Diagram
Channel 0
Amplifier MOD MOD
Enable Enable Couple Q+ Q-
I+ I-
Zero-Distort ionTM
RFOUT
Channel 0
RFOUT
Channel 1
G l i tc h - Fr e eTM
90 / 0
SPI Controller
DAC
DAC
Frequency
Synthesizer
90 / 0
/M
LO
/2
Switch
Matrix
RESET
Vdd
LO_LD
REF_IN
CP_OUT
VTUNE
VCOM
Amplifier MOD MOD Q+ Q-
Enable Enable Couple
Channel 1
I+ I-
+
-+
-
LO_IN LO_OUT
© 2020 Renesas Electronics Corporation
1
May 15, 2020


Renesas Electronics Components Datasheet

F159V Datasheet

Dual-Path RF Transmitter

No Preview Available !

F159V Datasheet
Contents
1. Pin Assignments...........................................................................................................................................................................................5
2. Pin Descriptions............................................................................................................................................................................................6
3. Absolute Maximum Ratings..........................................................................................................................................................................9
4. Recommended Operating Conditions.........................................................................................................................................................10
5. Electrical Characteristics ............................................................................................................................................................................11
6. Thermal Characteristics..............................................................................................................................................................................21
7. Typical Operating Conditions (TOC)...........................................................................................................................................................21
8. Typical Performance Characteristics ..........................................................................................................................................................22
9. Typical Performance Characteristics - VVA................................................................................................................................................23
10. Typical Performance Characteristics - DSA ...............................................................................................................................................24
11. Typical Performance Characteristics - Cascaded Gain ..............................................................................................................................25
12. Typical Performance Characteristics - Cascaded Gain (Cont.) ..................................................................................................................26
13. Typical Performance Characteristics - Cascaded OIP3 .............................................................................................................................27
14. Typical Performance Characteristics - Cascaded OIP3 (Cont.) .................................................................................................................28
15. Typical Performance Characteristics - Cascaded OIP2 .............................................................................................................................29
16. Typical Performance Characteristics - Cascaded OIP2 (Cont.) .................................................................................................................30
17. Typical Performance Characteristics - Cascaded OP1dB ..........................................................................................................................31
18. Typical Performance Characteristics - Cascaded OP1dB (Cont.) ..............................................................................................................32
19. Typical Performance Characteristics - Harmonics, Current, Switching ......................................................................................................33
20. Typical Performance Characteristics - Modulator Coupled Output.............................................................................................................34
21. Typical Performance Characteristics - Modulator Coupled Output.............................................................................................................35
22. Typical Performance Characteristics - LO..................................................................................................................................................36
23. Theory of Operation....................................................................................................................................................................................37
23.1. Frequency Generator.......................................................................................................................................................................37
23.1.1. Internal (VCO) Frequency .................................................................................................................................................38
23.1.2. Reference Frequency........................................................................................................................................................38
23.1.3. Charge Pump ....................................................................................................................................................................39
23.1.4. External Loop Filter...........................................................................................................................................................39
23.1.5. LO Frequency ...................................................................................................................................................................39
23.1.6. Voltage Control Oscillator (VCO) ......................................................................................................................................40
23.1.7. LO Switch Matrix ...............................................................................................................................................................42
23.2. Modulator .........................................................................................................................................................................................44
23.3. Variable Gain Amplifier ....................................................................................................................................................................44
23.4. General Settings ..............................................................................................................................................................................45
23.4.1. Initial Startup .....................................................................................................................................................................45
23.4.2. Logic Pins .........................................................................................................................................................................46
24. Programming ..............................................................................................................................................................................................46
24.1. Special Programming Note ..............................................................................................................................................................47
24.2. Register Definition............................................................................................................................................................................48
24.2.1. Register 0 (00h) ................................................................................................................................................................50
© 2020 Renesas Electronics Corporation
2
May 15, 2020



Part Number F159V
Description Dual-Path RF Transmitter
Maker Renesas
Total Page 3 Pages
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