ata5780 ATMEL Corporation, ata5780 Datasheet - Page 4

• Manufacturer Part Number: ata5780
• Description: Uhf Ask/fsk Receiver
• Manufacturer: ATMEL Corporation

1.3.4
1.3.5
1.3.6
1.4
4
Pin Diagram and Configuration of Atmel ATA5780
Atmel ATA5780 [Preliminary]
Two Separated Reception Paths
Channel Statistic
Application Firmware
The receiver’s demodulator contains two separate data paths. The parameters for either path
can be set differently, e.g. the modulation type or data rate. Both paths generally work simulta-
neously, but the first valid data from one of the both paths is stored on the buffer, which can be
read by using the SPI command.
In order to accelerate the communication in multi-channeling the Atmel ATA5780 offers a fea-
ture defined as channel statistic. If this feature is activated, the IC will find the best channel
having the least interference within the three frequency channels and select the best channel
as the first operating frequency during transmission.
All the functionality described in the datasheet is implemented in 24-Kbyte ROM firmware.
Figure 1-2.
Note:
The exposed die pad is connected to the internal die
SPDT_ANT
SPDT_RX
RFIN_HB
RFIN_LB
Pin Diagram
N.C.
N.C.
N.C.
N.C.
1
2
3
4
5
6
7
8
32
9
exposed die pad
31
10
30
11
ATA5780
Atmel
29
12
28
13
27
14
26
15
25
16
24
23
22
21
20
19
18
17
MOSI
SCK
CLK_OUT
DGND
DVCC
NPWRON5/TRPB/TMDO-CLK
NPWRON4
NPWRON3/TMDO
9207BS–RKE–01/11