ADUC7128 Datasheet, PDF (1/92 Pages) Analog Devices – Precision Analog Microcontroller ARM7TDMI MCU with 12-bit ADC & DDS DAC

Precision Analog Microcontroller
ARM7TDMI® MCU with 12-bit ADC & DDS DAC
Preliminary Technical Data
ADuC7128
FEATURES
Analog I/O
Multi-Channel, 12-bit, 1MSPS ADC
- 10 ADC channels
- Fully differential and single-ended modes
- 0 to VBREFB Analog Input Range
10-bit DAC
- 32-bit 21MHz DDS
- Current-to-Voltage (I/V) Conversion
-
Integrated
2^nd
P
P
order
LPF
- DDS Input to DAC
- 100ohm Line Driver
On-Chip Voltage Reference
On-Chip Temperature Sensor (±3°C)
Uncommitted Voltage Comparator
Microcontroller
ARM7TDMI Core, 16/32-bit RISC architecture
JTAG Port supports code download and debug
External Watch crystal/ Clock Source
- 41.78 MHz PLL with 8 way Programmable Divider
- Optional Trimmed On-Chip Oscillator
Memory
126k Bytes Flash/EE Memory, 8k Bytes SRAM
In-Circuit Download, JTAG based Debug
Software triggered in-circuit re-programmability
On-Chip Peripherals
2
x
UART,
2
x
I C® ²
P
P
and SPI Serial I/O
28-Pin GPIO Port
5 X General Purpose Timers
Wake-up and Watchdog Timers
Power Supply Monitor
16-bit PWM generator
Quadrature Encoder
PLA – Programmable Logic (Array)
Power
Specified for 3V operation
Active Mode: 11mA (@5MHz)
45mA (@41.78 MHz)
Packages and Temperature Range
64 lead LFCSP (9mm x 9mm) package –40°C to 85°C
Tools
Low-Cost QuickStart Development System
Full Third-Party Support
FUNCTIONAL BLOCK DIAGRAM
ADC0
CMP0
CMP1
CMP_OUT
V_REF
RST
XCLKI
XCLKO
XCLK
MUX T/H
12-BIT SAR
ADC 1MSPS
TEMP
SENSOR
+
DDS
10-BIT
IOUT DAC ^I/V
-
BAND GAP
REFERENCE _ADuC7128
POR
OSC/PLL
PSM
ARM7TDMI - BASED MCU
WITH ADDITIONAL PERIPHERALS
5 GEN PURPOSE
TIMERS
WAKE-UP/
RTC TIMER
2 KBYTES
62 KBYTES
FLASH/EE
64 KBYTES
FLASH/EE
8192 BYTES
SRAM
INTERRUPT (31k x 16 bits) (32k x 16 bits) (2k x 32 bits)
CONTROLLER
JTAG PLA SPI
I²C
UART0
UART1
GPIO
CONTROL
PWM
Quad
Encoder
VDAC
LD1TX
LD2TX
PWM1
PWM2
PWM3
PWM4
PWM5
PWM6
S1
S2
JTAG
Figure 1. Basic Block Diagram
Rev. PrA
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