T2802-PLQ Atmel, T2802-PLQ Datasheet - Page 14

• Manufacturer Part Number: T2802-PLQ
• Description: IC TXRX WDECT/ISM 2.4GHZ 48QFN
• Manufacturer: Atmel

Specifications of T2802-PLQ

• Frequency: 2.4GHz
• Modulation Or Protocol: WDECT
• Applications: ISM, WDECT(Wideband DECT)
• Power - Output: 3dBm
• Voltage - Supply: 3 V ~ 4.6 V
• Current - Receiving: 85mA
• Current - Transmitting: 54mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -25°C ~ 85°C
• Package / Case: 48-QFN Exposed Pad
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Product Depth (mm): 7mm
• Product Length (mm): 7mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Memory Size: -
• Data Rate - Maximum: -
• Lead Free Status / Rohs Status: Not Compliant

Figure 3. PLL Principle
14
T2802
Baseband controller
Controlled phase shifting
Programable counter PC
"- Main counter MC
"- Swallow counter SC
REF_CLK
f
Reference counter RC
VCO
13.824 MHz
20.736 MHz
27.648 MHz
10.368 MHz
Phase frequency
detector PD
f
PD
PLL reference
Frequency
REF_CLK
= f
= 3.456 MHz
PD
RF_IN
x (S
MC
x 32 + S
S
3
4
6
8
RC
SC
)
6.912 MHz
Charge
pump
Modulation
compensation MCC
VCO
DAC
TX_DATA
ext. loop filter
1.152 Mbit/s
Gaussian
filter GF
VCO
GF_DATA
f
VCO
Divider
by 2
PA driver
Mixer
4509F–DECT–10/03