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參數(shù)資料
| 型號： | MAX2364ECM |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | Quadruple Bus Buffer Gates With 3-State Outputs 14-SO -40 to 85 |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PQFP48 |
| 封裝： | 7 X 7 MM, 1 MM HEIGHT, EXPOSED PAD, TQFP-48 |
| 文件頁數(shù)： | 12/24頁 |
| 文件大?。?/td> | 413K |
| 代理商： | MAX2364ECM |
M
Complete Dual-Band
Quadrature Transmitters
12
______________________________________________________________________________________
RFH0 and RFH1 are optimized for split-band PCS opera-
tion. The PA drivers have open-collector outputs and
require pull-up inductors. The pull-up inductors can act
as the shunt element in a shunt series match.
Programmable Registers
The MAX2360/MAX2362/MAX2364 include seven pro-
grammable registers consisting of four divide registers,
a configuration register, an operational control register,
and a test register. Each register consists of 24 bits.
The 4 least significant bits (LSBs) are the register’s
address. The 20 most significant bits (MSBs) are used
for register data. All registers contain some “don't care”
bits. These can be either a “0” or a “1” and will not
affect operation (Figure 1). Data is shifted in MSB first,
followed by the 4-bit address. When
CS
is low, the
clock is active and data is shifted with the rising edge
of the clock. When
CS
transitions to high, the shift reg-
ister is latched into the register selected by the con-
tents of the address bits. Power-up defaults for the
seven registers are shown in Table 2. The dividers and
control registers are programmed from the SPI/
QSPI/MICROWIRE-compatible serial port.
The RFM register sets the main frequency divide ratio
for the RF PLL. The RFR register sets the reference fre-
quency divide ratio. The RF VCO frequency can be
determined by the following:
RF VCO frequency = f
REF
·
(RFM / RFR)
IFM and IFR registers are similar:
IF VCO frequency = f
REF
·
(IFM / IFR)
where f
REF
is the external reference frequency for the
MAX2360/MAX2362/MAX2364.
The operational control register (OPCTRL) controls the
state of the MAX2360/MAX2362/MAX2364. See Table 3
for the function of each bit.
The configuration register (CONFIG) sets the configura-
tion for the RF/IF PLL and the baseband I/Q input lev-
els. See Table 4 for a description of each bit.
The test register is not needed for normal use.
Power Management
Bias control is distributed among several functional
sections and can be controlled to accommodate many
different power-down modes as shown in Table 5.
The shutdown control bit is of particular interest since it
differs from the
SHDN
pin. When the shutdown control
bit is active (SHDN_BIT = 0), the serial interface is left
active so that the part can be turned on with the serial
bus while all other functions remain shut off. In contrast,
when the
SHDN
pin is low it shuts down everything. In
either case, PLL programming and register information
is lost. To retain the register information, use standby
mode (
STBY
= 0).
Signal Flow Control
Table 6 shows an example of key registers for triple-
mode operation, assuming half-band PCS and IF fre-
quencies of 130MHz/165MHz.
Applications Information
The MAX2360 is designed for use in dual-band, triple-
mode systems. It is recommended for triple-mode hand-
sets (Figure 2). The MAX2362 is designed for use in
CDMA PCS handset or WLL single-mode 2.4GHz ISM
systems (Figure 3). The MAX2364 is designed for use in
dual-mode cellular systems (Figure 4).
3-Wire Interface
Figure 5 shows the 3-wire interface timing diagram. The
3-wire bus is SPI/QSPI/MICROWIRE compatible.
Table 2. Register Power-Up Default States
TEST
0111
b
0000 hex
Test-mode control
CONFIG
OPCTRL
IFR
0101
b
0100
b
0011
b
0492 dec
892F hex
D03F hex
IFM
RFR
RFM
REGISTER
0010
b
0001
b
0000
b
ADDRESS
DEFAULT
172087 dec
1968 dec
6519 dec
Configuration and setup control
Operational control settings
IF R divider count
IF M divider count
RF R divider count
RF M divider count
FUNCTION
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX2364ECM-T | 功能描述:射頻發(fā)射器 RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
| MAX2365ECM | 功能描述:射頻發(fā)射器 RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
| MAX2365ECM+ | 功能描述:射頻發(fā)射器 RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
| MAX2365EGM | 功能描述:射頻發(fā)射器 RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
| MAX2365EGM-D | 功能描述:射頻發(fā)射器 RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
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