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参数资料
| 型号： | MAX7058ATG+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/14页 |
| 文件大小： | 0K |
| 描述： | IC TX 315MHZ/390MHZ ASK 24-TQFN |
| 其它有关文件： | Automotive Product Guide |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 频率： | 315MHz ~ 390MHz |
| 应用： | 汽车 RKE，遥控，无线传感器 |
| 调制或协议： | ASK，OOK |
| 数据传输率 - 最大： | 50 kbps |
| 功率 - 输出： | 10dBm |
| 电流 - 传输： | 12.9mA |
| 数据接口： | PCB，表面贴装 |
| 天线连接器： | PCB，表面贴装 |
| 电源电压： | 2.1 V ~ 3.6 V |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 24-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
19-3206; Rev 0; 1/08
ATION
ILABLE
EVALU
AVA
KIT
315MHz/390MHz Dual-Frequency
ASK Transmitter
General Description
The MAX7058 UHF transmitter alternately transmits
ASK/OOK data at 315MHz or 390MHz using a single
crystal. The MAX7058 has internal tuning capacitors at
the output of the power amplifier that can be pro-
grammed for matching to the antenna or load. The
MAX7058 can transmit at a data rate up to 100kbps
NRZ (50kbps Manchester coded). Typical transmitted
power into a 50 Ω load is +10dBm. The MAX7058 oper-
ates from +2.1V to +3.6V and draws under 8.0mA of
current. The standby current is less than 1μA at room
temperature. A 15MHz crystal is used as the reference
for 315MHz and 390MHz operation by selecting synthe-
sizer-divide ratios of 21 and 26, respectively.
The MAX7058 is available in a 4mm x 4mm, 24-pin thin
QFN package and is specified to operate in the -40°C
to +125°C automotive temperature range.
Applications
Features
? Switched 315MHz/390MHz Carrier Frequency
Using One Crystal
? +2.1V to +3.6V Single-Supply Operation
? ASK/OOK Modulation
? Internal Switched Capacitors for Optimum Dual-
Frequency Operation
? 8.0mA DC Current Drain (50% Duty Cycle OOK)
? 0.8μA Standby Current
? Small 4mm x 4mm, 24-Pin Thin QFN Package
Ordering Information
Garage Door Openers
RF Remote Controls
PART
TEMP RANGE PIN-PACKAGE
PKG
CODE
Home Automation
Wireless Sensors
MAX7058ATG+ -40°C to +125°C
24 Thin QFN-EP*
(4mm x 4mm)
T2444+3
Security Systems
Automotive
Pin Configuration
+Denotes a lead-free package.
*EP = Exposed paddle.
Functional Block Diagram
TOP VIEW
24
23
22
21
20
19
N.C.
+ 24 23
1
22
21
20
19
18 N.C.
N.C.
DVDD
1
2
CRYSTAL
OSCILLATOR
18
17
N.C.
XTAL1
DVDD
FSEL
CAP1
2
3
4
MAX7058
17 XTAL1
16 XTAL2
15 AVDD
FSEL
3
DIGITAL
CONTROL
FREQUENCY
÷ 21 OR ÷ 26
EXPOSED
PADDLE
(GND)
PFD
VCO
CHARGE
PUMP
LOOP
FILTER
16
XTAL2
CAP2
N.C.
5
6
EP*
14 PAVDD
13 N.C.
CAP1
4
PA
ENVELOPE
SHAPING
15
AVDD
7
8
9
10
11
12
CAP2
5
14
PAVDD
N.C.
6
MAX7058
13
N.C.
TQFN
*EP = EXPOSED PADDLE.
7
8
9
10
11
12
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
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| MAX705CSA | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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