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IA4432 데이터시트 PDF




Integration에서 제조한 전자 부품 IA4432은 전자 산업 및 응용 분야에서
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부품번호 IA4432 기능
기능 ISM Transceiver
제조업체 Integration
로고 Integration 로고


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IA4432 데이터시트, 핀배열, 회로
IA4432 ISM Transceiver
DESCRIPTION
Integration’s I A4432 transceiver is a member of the new EZRa dioPROTM fa mily.
While re taining all the a ttractive fe atures o f earli er pr oducts such as h igh
integration, low cost, flexibility, low Bill of Materials (BOM) cost, and easy design-in,
these par ts ar e targe ted t o m ore so phisticated appl ications an d offe r sev eral
enhanced para meters and fea tures, inc luding contin uous fre quency cov erage
from 240- 930MHz and output power up to +20dBm. Also inc luded are built- in
features like an tenna d iversity algorithm, wak e-up ti mer, low b attery d etector,
temperature se nsor, gen eral purpose Anal og t o Dig ital Conv erter (A DC), TX/R X
First-In First-Out Buffers (FIFO’s), power-on-reset (POR), and general purpose I/Os
(GPIOs). The chip incorporates a high performance ADC in the RX path and digital
modem which performs demodulation, filtering, and packet handling in the digital
domain making it ideal for configuration to multiple applications. These features
simplify the task of th e sys tem designer a nd allow for t he use o f lowe r-end
Microcontrollers. A highly efficient +20dBm po wer amplifier (P A) is completely
integrated which eliminates the need for a n external PA and mak es the part ideal
for Fre quency Hopp ing Sy stems where maximu m range is desire d. The devices
comply with FCC and ETSI req uirements wh en u sed in any of the standard IS M
bands. On ly a 30MHz crysta l and a limi ted number of pa ssive matching/filtering
components ar e necessar y as e xternal com ponents mak ing the device id eal fo r
high volume production in applications where size and cost are critical.
The IA4432 is a CMOS Radio Frequency Integrated circuit which incorporates all of
the transmit and receive functions required for ISM band applications. The chip is
designed to operate over a w ide range of frequencies, voltages, and temperature
with ex tremely l ow curren t cons umption which makes it ideal for low-data rate
battery powered applications.
FUNCTIONAL BLOCK DIAGRAM
VDD_RF
RF LDO
TX
PA
VCO LDO
VCO
ANTDIV
TXRXSW
PA_RAMP
PWR_CTRL
AGC Control
RFp
RFn
VR_IF
LNA
IF LDO
Mixers
BIAS
PGA
PLL LDO
LPF CP
RC 32K OSC
PFD
30M XTAL
OSC
N
LBD
Temp
Sensor
8Bit
ADC
Delta Sigma
Modulator
TXMOD Digital Logic
SPI, & Controller
SCLK
SDI
SDO
VDD_DIG
GND_DIG
Digital Modem
ADC
Low Power
Digital LDO
Digital LDO
POR
IA4432
QFN-20 PIN ASSIGNMENT
VDD_RF
TX
RXp
RXn
VR_IF
Metal
Paddle
20 19 18 17 16
1 15
2 14
3 13
4 12
5 11
6 7 8 9 10
SCLK
SDI
SDO
VDD_DIG
GND_DIG
See back page for ordering information.
FEATURES
Frequency Range = 240-
930MHz
Sensitivity =-117dBm
+20dBm Max Output
Power
o Configurable +11 to
+20dBm
Low Power Consumption
o 17mA Receive
o 60mA Transmit
@+20dBm
o 27mA@+13dBm
Data Rate = 1 to
128kbps
Power Supply = 1.8 to
3.6V
Ultra Low Power
Shutdown Mode
Digital RSSI
Wake-On-Radio
Auto-Frequency
Calibration (AFC)
Antenna Diversity & TR
Switch Control
Configurable Packet
Structure
Preamble Detector
TX & RX 64 byte FIFOs
Low Battery Detector
Temperature Sensor
and 8bit ADC
-40°C - +85°C
Temperature Range
Integrated Voltage
Regulators
Frequency Hopping
Capability
On-chip Crystal Tuning
20-Pin QFN Package
FSK, GFSK, and OOK
Modulation
Low BOM
Power-on-Reset(POR)
TYPICAL APPLICATIONS
Remote Control
Remote Meter Reading
Home Security & Alarm Remote Keyless Entry
Telemetry
Home Automation
Personal Data Logging Industrial Control
Toy Control
Sensor Networks
Tire Pressure Monitoring Health Monitors
Wireless PC Peripherals Tag Readers
IA4432-DS rev 0.9r 0508
PRELIMINARY
1
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IA4432 pdf, 반도체, 판매, 대치품
IA4432
LIST OF FIGURES
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+20dBm Application with Antenna Diversity and FHSS ................................................................................................... 7
IA4432 Pinout .................................................................................................................. .................................................. 8
Production Test Schematic...................................................................................................... ........................................ 16
SPI Timing..................................................................................................................... .................................................... 18
SPI Timing –READ Mode.......................................................................................................... ........................................ 19
SPI Timing –Burst Write Mode ................................................................................................... ..................................... 19
SPI Timing –Burst Read Mode.................................................................................................... ..................................... 19
State Machine Diagram .......................................................................................................... ......................................... 20
TX Timing ...................................................................................................................... .................................................... 27
RX Timing...................................................................................................................... .................................................... 27
FSK vs. GFSK Spectrum.......................................................................................................... ......................................... 33
Direct Synchronous Mode Example ................................................................................................ ................................ 35
Direct Asynchronous Mode Example............................................................................................... ................................ 35
FIFO Mode Example .............................................................................................................. ........................................... 36
PLL Synthesizer Block Diagram.................................................................................................. ..................................... 38
FIFO Thresholds ................................................................................................................ ............................................... 41
Packet Structure ............................................................................................................... ............................................... 42
Multiple Packets in TX Packet Handler .......................................................................................... ................................. 42
Required RX Packet Structure with Packet Handler Disabled ...................................................................... .................43
Multiple Packets in RX Packet Handler.......................................................................................... ................................. 43
Multiple Packets in RX with CRC or Header Error................................................................................ ........................... 43
Operation of Data Whitening, Manchester Encoding, and CRC...................................................................... ...............51
POR Glitch Parameters .......................................................................................................... .......................................... 54
General Purpose ADC Architecture ............................................................................................... .................................. 56
ADC Differential Input Example – Bridge Sensor ................................................................................. .......................... 57
Temperature Ranges using ADC8 .................................................................................................. ................................. 59
Low Duty Cycle Mode ............................................................................................................ ........................................... 61
GPIO Usage Examples............................................................................................................ .......................................... 64
RSSI Value vs. Input Frequency................................................................................................. ...................................... 66
Package Dimensions ............................................................................................................. .......................................... 70
Reference Design Schematic ..................................................................................................... ..................................... 71
Reference Design Layout........................................................................................................ ......................................... 73
Antenna Diversity Reference Design Schematic ................................................................................... ......................... 74
Antenna Diversity Reference Design Layout...................................................................................... ............................. 75
Sensitivity vs. Data Rate ...................................................................................................... ............................................ 76
Receiver Selectivity ........................................................................................................... ............................................... 77
TX Output Power vs. VDD voltage ................................................................................................ .................................... 78
TX Output Power vs Temperature................................................................................................. ................................... 78
TX Modulation (40kbps, 20khz Deviation) ........................................................................................ ............................. 79
TX Unmodulated Spectumr (917MHz) ............................................................................................... ............................. 79
TX Modulated Spectrum (917MHz, 40kbps, 20kHz Deviation, GFSK) ................................................................. .......80
Synthesizer Settling Time for 1MHz Jump settled within 10kHz ................................................................... ................80
Synthesizer Phase Noise (VCOCURR=’11’)......................................................................................... ............................ 81
PRELIMINARY
4

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IA4432 전자부품, 판매, 대치품
IA4432
2 FUNCTIONAL DESCRIPTION
The IA4432 is d esigned to work with a Microc ontroller, crystal, and a few passives to cr eate a very low cost sy stem as shown Figure
1. Voltage regulators are integrated on-chip which allow for a wide range of operating supply voltage conditions from +1.8 to +3.6V.
A standard four pin SPI bus is used to communicate with the Microcontroller. Three configurable general purpose I/Os are available
for use to tailor towards the needs of the system. A more complete list of the available GPIO functions is shown in section 9 Auxiliary
Functions but just to name a few, Microcontroller clock outp ut, Antenna Div ersity, TRSW co ntrol, PO R, and s pecific interrupts. A
limited number of passive components are needed to match the LN A and PA; refer to Sect ion 11, Reference Design for the required
component values at different frequency ranges.
The application below is designed for a system with Anten na Diversity. Using Antenn a Diversity can increase the link budget of the
system by as much as 10dB. The Antenna Diversity Control Algorithm is completely integrated into the chip and is discussed further
in Section 9.8 Antenna-Diversity.
For a simpler application example not using Antenna Diversity see the Reference Design section.
supply voltage
C6
100p
C7
100n
C8
1u
X1
30MHz
GP1
GP2
VDD
TR & ANT-DIV
Switch
L3
C3
L2
C2
C4
L4
C5
L1 VDD_RF 1
15 SCLK
GP3
C1
TX 2
14 SDI
RXp 3 IA4432 13 SDO
GP4
GP5 microcontroller
RXn 4
12 VDD_D
VR_IF 5
11 GND_D
C10
1u
C8
1u
C9
1u
Programmable load capacitors for X1 are integrated.
R1, L1-L5 and C1-C4 values depend on frequency band,
antenna impedance, output power and supply voltage range.
Figure 1: +20dBm Application with Antenna Diversity and FHSS
VSS
PRELIMINARY
7

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