ATMEL ATR2740-7GHG

Features
• Highly Integrated Digital Device for DAB Receivers (Eureka 147)
• Utilizes the ARM7TDMI® Core
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– High-performance 32-bit RISC Architecture
– High-density 16-bit Instruction Set
– Embedded ICE (In-Circuit Emulation)
– 128-kByte Program and Data RAM
Utilizes TeakDSPCore®
– 16-bit Fixed-point Digital Signal Processing Core
– High-performance Dual MAC Architecture
– 75 MHz Single Clock Design
DAB OFDM Channel Demodulator and Decoder
– Fully Integrated, Supports all DAB Functions and
Modes
– Full Data Rate of 1.8 Mbit Can Be Decoded
– Proven Time and Frequency Synchronization
with a Wide-range Parameter Set
– Automatic Mode Detection (AMD)
– Digital AFC (Frequency Tolerance < 0.5 Hz for Mode I)
– Digital AGC with a Wide Gain Control Range
– Demodulation and Decoding of up to 64 UEP/EEP Sub-channels
– Support of Dynamic Multiplex Reconfiguration (DMR) without Mute State
– Digital Zero-symbol Detection (FSYNCH Generation)
Audio Source Decoder (ASD) and Data Decoder (DD)
– On-chip De-interleaver Memory for Full 1.8 Mbit/s Decoding Data Rate
– Programmable Fader
– Programmable DRC
– PAD Extraction
– Two Independent Data Packet Mode Decoder
Integrated High-density SRAM Supporting Time and Frequency De-interleaving
10 Msps High-speed Low-power Pipelined ADC
– Supports Wide IF Range of 2.048 MHz to 50 MHz
– Complex Bandpass Filtering
– Optional SAW Filter Equalization
ARM7TDMI Core User Software Extension
– Audio Player MPEG3 Support
Large Variety of Interfaces
– I2S/SPDIF, SFCO, SSO, RDI, RS-232, USART
– USB 2.0 Full Speed
– Two USARTs
– CAN 2.0A and 2.0B
Master/Slave SPI Interface
– Two Dedicated Peripheral Data Controller (PDC) Channels
– 8- to 16-bit Programmable Data Length
– Four External Slave Chip Selects
Simple Memory Concept, Only One External Flash Required
Programmable Watchdog Timer
Power Management Controller (PMC)
– CPU and Peripherals Can Be De-activated Individually
– Simple But Comfortable Gearing and Clocking Unit
32 User Programmable I/O Lines (PIO)
Low-power Consumption for Portable Applications (3.3 V and 1.8 V)
Robust LQFP128 Package, BGA121 Package
Very Low External Component Count
Electrostatic sensitive device.
Observe precautions for handling.
DAB Digital
Processing
Device
ATR2740
Summary
Preliminary
Rev. 4816BS–DAB–11/04
Note: This is a summary document. A complete document
is available under NDA. For more information, please contact your local Atmel sales office
Description
The ATR2740 is a fully integrated processing unit which covers all DAB- (Eureka 147,
ETS 300 401) related digital tasks like DAB OFDM demodulation and decoding, audio
source decoding, data decoding and time, as well as frequency synchronization.
The device consists of a high-performance 32-bit RISC ARM7TDMI core, an additional
TeakDSPCore, embedded memories, an Analog-to-Digital Converter (ADC), as well as
a DAB channel demodulator and decoder IP and two independent audio source decoder
engines. A large variety of interfaces, including USB, SPI, USART and RDI is provided.
The ATR2740 baseband processor is controlled by a standard ARM7TDMI core which
is a very well-known controller. This allows the designers to work with standard tools,
which results in reduced development costs and very fast time to market.
The ARM7TDMI core is designed to perform the DAB receiver tasks, MMI and further
user software extensions such as MP3 decoding or data decoding.
The ATR2740 is manufactured using Atmel’s high-density CMOS technology. By combining all functions on one SoC (System-on-Chip), including a wide range of peripheral
functions on a monolithic chip, the ATR2740 provides a highly flexible and cost-effective
solution for DAB applications.
The advanced Atmel technology and the architecture of the ATR2740 enable maximum
performance at a very low current consumption.
The wide flexibility offered by the ATR2740 is due to the large variety of interfaces supported. For control functions, UART, USB, and SPI are available. As data interface an
SSO, SFCO, US Band RDI interfaces as well as two audio output (either I2S or SPDIF)
are available.
Due to the high integration of the device, the external component count is as low as only
two external parts; a simple crystal and a 16-MB flash memory are required to run the
full DAB function. All RAM, such as interleaving or program memory, as well as the ADC
are incorporated into the device. The part works perfectly together with Atmel’s DAB
front-end parts.
The processing power available with the ATR2740 is sufficient to enable the part to
decode the full DAB data rate of 1.8 Mbits. In additon, there is still unused processing
power available on the ARM7TDMI controller for customer software. It is easy to run a
complete MP3 player without the need to add extra hardware to the device.
A complete set of tools for hardware and software, including documentation that allows
easy design-in and a fast time to market, is available on request.
2
ATR2740 [Preliminary]
4816BS–DAB–11/04
ATR2740 [Preliminary]
Figure 1. Block Diagram
VINP
VINN
ATR2740
ADC
ADC_DAT A
VCM
TXRDI
DAB
Channel Decoder
SFCO
XO
Clock
Generation
Adv anced
Power
Management
I2S /SPDIF
Signal
Processing
CORE
CAN
USB
I2S /SPDIF
Watchdog
SSO
IRQ0
SPI
IRQ1
IRQ2
USART1
ARM7TDMI Sy stem
Watchdog
Databus
USART2
RESET
Adressbus
GPIO
Control
JTAG
Absolute Maximum Ratings
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating
only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this
specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Parameters
Symbol
Min.
Max.
Unit
Operating free air temperature range for LQFP128
-40
+85
°C
Operating free air temperature range for BGA121
-10
+70
°C
TStg
-60
+150
°C
VDD18
-0.3
+1.95
V
Storage temperature
DC supply voltage
VDD33
-0.3
+3.6
V
AVDD
-0.3
+3.6
V
-0.3
+1.95
V
DC input voltage
Notes:
1. The part may not survive if all maximums are applied simultaneously.
DC Electrical Characteristics
Test conditions (if not otherwise specified): VCC = +1.8 V, Tamb = +25° C
No.
Parameters
1.1
DC supply voltage
1.2
Low-level input
voltage
1.3
1.4
Test Conditions
Pin
Symbol
Min.
Typ.
Max.
Unit
VDD18
1.65
1.8
1.95
V
VDD18 = 1.65 to 1.95 V
VIL
-0.3
+0.3 ×
VDD18
V
High-level input
voltage
VDD18 = 1.65 to 1.95 V
VIH
+0.7 ×
VDD18
VDD18
+ 0.3
V
Low-level output
voltage
IOL = 0.3 mA
VDD18 = 1.65 V
VOL
0.1
V
Type*
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
3
4816BS–DAB–11/04
DC Electrical Characteristics (Continued)
Test conditions (if not otherwise specified): VCC = +1.8 V, Tamb = +25° C
No.
Parameters
Test Conditions
Pin
Symbol
Min.
VOH
VDD18
-0.1
Typ.
Max.
Unit
1.5
High-level output
voltage
IOH = 0.3 mA
VDD18 = 1.65 V
1.12
Crystal oscillator
frequency
1.13
Clock duty cycle
1.15
USB DC supply
voltage
1.16
USB input low level
VILUSB
1.17
USB input high level
VIHUSB
2.0
V
1.18
USB differential input
sensitivity
VDIUSB
0.2
V
1.19
USB differential input
common mode range
VCMUSB
0.8
2.5
V
1.20
USB output low level
VOLUSB
0.0
0.3
V
1.21
USB output high level
VOHUSB
2.8
3.6
V
1.22
Transition rise time
Full speed
TFR
4
20
ns
1.23
Transition fall time
Full speed
TFE
4
20
ns
1.24
USB crystal oscillator
frequency
FUSB
4
9
MHz
1.25
USB clock duty cycle
40
60
%
1.26
JTAG TCK frequency
0.02
33
MHz
V
24.576
40
Full speed
VDD33
FTCK
3
Type*
3.3
8
MHz
60
%
3.6
V
0.8
V
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Electrical Characteristics on ADC/IF Input
Test conditions (if not otherwise specified): VCC = +3.3 V, Tamb = +25° C
No.
Parameters
2.1
ADC DC supply
voltage
2.2
IF frequency range
Test Conditions
Pin
Symbol
Min.
Typ.
Max.
Unit
AVDD
3
3.3
3.6
V
FIF
2.048
50
MHz
Type*
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
DC Power Consumption
Test conditions (if not otherwise specified): VCC = +1.8 V, Tamb = +25°C
Mode
Conditions
Typ.
Max.
Unit
Core Power Consumption
DAB full
4
Decode of all MSC’s and 1 audio sub-channel
80
mA
ATR2740 [Preliminary]
4816BS–DAB–11/04
ATR2740 [Preliminary]
Ordering Information
Extended Type Number
Package
Remarks
ATR2740-RQHH
LQFP128
16 mm × 16 mm, 0.40 mm pitch, lead free
ATR2740-7GHG
BGA121
10 mm × 10 mm, 0.80 mm pitch, lead free
Package Information LQFP128
5
4816BS–DAB–11/04
Package Information BGA121
6
ATR2740 [Preliminary]
4816BS–DAB–11/04
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are the trademarks of Atmel Corporation or its subsidiaries.
ARM7TDMI® is a registered trademark of ARM Ltd.
TeakDSPCore® is a registered trademark of Ceva Inc.
Other terms and product names may be trademarks of others.
Printed on recycled paper.
4816BS–DAB–11/04