ATA5279-PLQW Atmel, ATA5279-PLQW Datasheet - Page 27

• Manufacturer Part Number: ATA5279-PLQW
• Description: RF Wireless Misc High-end multiple antenna driver IC
• Manufacturer: Atmel

Specifications of ATA5279-PLQW

• Package / Case: VQFN-48
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4. Application
Figure 4-1.
9125L–RKE–03/11
X1
MISO
S_CLK
OSCO
C7
NRES
BCNT
MACT
S_CS
MOSI
OSCI
IRQ
VIF
VBATT
(4)
Application Schematic for the Atmel ATA5279
Oscillator
SPI
Protocol Handling
Communication
D1
AGND
Control Logic
C1
C2
L1
+
Find below a typical application schematic for the Atmel
Notes:
POR, BG, UV/OV
Internal Supply
LF Data Buffer
VS
Driver Stage
Reference
Control
RGND
1. A negative current on pin MISO that causes the voltage to drop below –0.6V with respect to
2. For applications with > 6 antennas please refer to the application note “Atmel ATA5279
3. R1
4. No pull-up resistance (by means of resistor or microcontroller pull-up) allowed.
VCC
C5
ground might lead to a chip reset, comparable to a logic low on the NRES pin.
Antenna Driver Extension”.
L2
1 for proper operation.
Sine Wave
Generator
Controller
Integrator
and Hold
Sample
VL
Boost
DC
DC
C6
PGND
CINT
D2
C3
C4
VSHS
R1
+
Return Line
(3)
Zero Cross
Detector
HP 1-3
LP 1-3
Driver
VDS
A1P
A2P
A3P
A4P
A5P
A6P
A1N
A2N
A3N
A4N
A5N
A6N
VSHF
®
ATA5279.
Atmel ATA5279
PCB
Ant1
Ant2
Ant3
Ant4
Ant5
Ant6
car
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