AMIS-53050 Datasheet, PDF (64/107 Pages) AMI SEMICONDUCTOR – Frequency Agile Transceiver

AMIS-53050 Frequency Agile Transceiver
6.6 Transmitter
Data Sheet
Figure 39: Typical Output Power vs. Power Register Setting*
*Note: Curve is for output matched to 50Ω.
Table 44: Transmit Command
Register
Number (HEX) Name
0X00
Command
Code
0X02
Function
Instruction to place the AMIS-53050 into transmit
(Remember that all parameters for transmit must be set before
issuing this command)
The AMIS-53050 uses a switching class E power amplifier as the high power output driver. The high power PA can be bypassed to
allow a high efficiency at a lower output power. The output drivers are turned on and off directly in AM/OOK/ASK data modulation. A
direct modulation PLL is used to form the FM/FSK signal for transmission. The PLL loop runs at half of the desired transmit frequency
to provide excellent On/Off ratio for AM, and to lower current consumption in the PLL.
OOK modulation (AM)
FSK modulation (FM)
Burst mode transmit
FM wave shaping
High power and low power range
Register descriptions:
Data Rate- Can be specified in the discrete data rate register, or specified as a 16-bit word for a user defined data rate (see
Section 7.1.3)
RF Frequency- The RF frequency of the transmitter must be configured (see section 6.4.1)
Output Power- Sets the RF output level for the AMIS-53050
AMI Semiconductor – Jan. 07, M-20639-002
64
www.amis.com