ata5279n ATMEL Corporation, ata5279n Datasheet - Page 26

• Manufacturer Part Number: ata5279n
• Description: Antenna Driver For Multiple Antennas
• Manufacturer: ATMEL Corporation

4. Application
Figure 4-1.
26
X1
ATA5279N [Preliminary]
S_CLK
OSCO
C7
NRES
MACT
BCNT
S_CS
MOSI
MISO
OSCI
IRQ
VIF
VBATT
Application Schematic for ATA5279N
Oscillator
SPI
Protocol Handling
Communication
D1
GND
Control Logic
C1
C2
L1
Find below a typical application schematic for ATA5279N.
Note:
+
POR, BG, UV/OV
Internal Supply
LF Data Buffer
VS
Driver Stage
Reference
Control
A negative current on pin MISO that causes the voltage to drop below –0.6V with respect to
ground might lead to a chip reset, comparable to a logic low on the NRES pin.
RGND
VCC
C5
L2
Sine Wave
Generator
Controller
Integrator
and Hold
Sample
VL
Boost
DC
DC
C6
PGND
CINT
D2
C3
C4
VSHS
R1
+
Return Line
Zero Cross
Detector
HP 1-3
LP 1-3
Driver
VDS
A1P
A2P
A3P
A4P
A5P
A6P
A1N
A2N
A3N
A4N
A5N
A6N
VSHF
Ce1
Ce4 Ce5 Ce6
Ce7 Ce8 Ce9 Ce10 Ce11 Ce12
Ce2 Ce3
PCB
Ant1
Ant2
Ant3
Ant4
Ant5
Ant6
9125C–RKE–01/09
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