T4260-ILQH Atmel, T4260-ILQH Datasheet - Page 26

• Manufacturer Part Number: T4260-ILQH
• Description: IC AM/FM FRONT END W/PLL 44SSOP
• Manufacturer: Atmel

Specifications of T4260-ILQH

• Frequency: AM, FM
• Modulation Or Protocol: AM, FM
• Applications: AM/FM Radio Receiver
• Current - Receiving: 85mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 8 V ~ 10 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Sensitivity: -
• Memory Size: -
• Data Rate - Maximum: -

11.2
Figure 11-3. Block Diagram of the PLL Core
26
EN, DATA, CLK (Pins 23-25)
T4260
LATCH N - DIV 1
f
ref
18 - BIT
LATCH R - DIV.
MUX N1 N2
SHIFT 2 BIT
R - DIVIDER
SHIFT 2 BIT
DIVIDER
14 - BIT
N/N+1
All functions can be controlled via a 3-wire bus consisting of Enable, Data and Clock. The bus is
designed for microcontrollers which can operate with 3-V supply voltage. Details of the data
transfer protocol can be found in
Figure 11-2. Internal Components at Enable, Data and Clock
B5
18 - BIT
LATCH N - DIV 2
2 - BIT (LSB)
DETECTOR
PHASE
EN
DATA
CLK
SWITCH N+1, N
ACCU 2 - BIT
B60, B144
SWITCH
PREAMP
Section 8. “3-wire Bus Description” on page
DELAYTIME
high cur. CP
HCDEL 1 HCDEL 2
CHARGE
PUMP
V
BIT 18
BIT 32
5
B61
FILTER
AM/FM
AM/FM
B62,63
B145
AM - LOOP
FM - LOOP
FILTER
FILTER
VCO
10.
4528N–AUDR–11/09