Electronic Components Datasheet Search |
|
MAX5351ACPA Datasheet(PDF) 10 Page - Maxim Integrated Products |
|
MAX5351ACPA Datasheet(HTML) 10 Page - Maxim Integrated Products |
10 / 16 page Low-Power, 13-Bit Voltage-Output DACs with Serial Interface 10 ______________________________________________________________________________________ Shutdown Mode The MAX535/MAX5351 feature a software-programmable shutdown that reduces supply current to a typical value of 4µA. Writing 111XXXXXXXXXXXXX as the input-control word puts the MAX535/MAX5351 in shutdown mode (Table 1). In shutdown mode, the MAX535/MAX5351 output ampli- fier and the reference input enter a high-impedance state. The serial interface remains active. Data in the input registers is retained in shutdown, allowing the MAX535/MAX5351 to recall the output state prior to entering shutdown. Exit shutdown mode by either recall- ing the previous configuration or by updating the DAC with new data. When powering up the device or bringing it out of shutdown, allow 20µs for the output to stabilize. Serial-Interface Configurations The MAX535/MAX5351’s 3-wire serial interface is com- patible with both Microwire™ (Figure 2) and SPI™/QSPI™ (Figure 3). The serial input word consists of three control bits followed by 13 data bits (MSB first), as shown in Figure 4. The 3-bit control code determines the MAX535/MAX5351’s response outlined in Table 1. The MAX535/MAX5351’s digital inputs are double buffered. Depending on the command issued through the serial interface, the input register can be loaded without affecting the DAC register, the DAC register can be loaded directly, or the DAC register can be updated from the input register (Table 1). Serial-Interface Description The MAX535/MAX5351 require 16 bits of serial data. Table 1 lists the serial-interface programming com- mands. For certain commands, the 13 data bits are “don’t cares.” Data is sent MSB first and can be sent in two 8-bit packets or one 16-bit word ( CS must remain low until 16 bits are transferred). The serial data is com- posed of three control bits (C2, C1, C0), followed by the 13 data bits D12...D0 (Figure 4). The 3-bit control code determines: • The register to be updated • The configuration when exiting shutdown Figure 5 shows the serial-interface timing requirements. The chip-select pin ( CS) must be low to enable the DAC’s serial interface. When CS is high, the interface control cir- cuitry is disabled. CS must go low at least tCSS before the rising serial clock (SCLK) edge to properly clock in the first bit. When CS is low, data is clocked into the internal shift register via the serial-data input pin (DIN) on SCLK’s rising edge. The maximum guaranteed clock frequency is 10MHz. Data is latched into the MAX535/MAX5351 input/DAC register on CS’s rising edge. SCLK DIN CS SK SO I/O MAX535 MAX5351 MICROWIRE PORT Figure 2. Connections for Microwire DIN SCLK CS MOSI SCK I/O SPI/QSPI PORT SS +5V CPOL = 0,CPHA = 0 MAX535 MAX5351 Figure 3. Connections for SPI/QSPI Figure 4. Serial-Data Format 3 Control Bits 13 Data Bits D12................................................D0 C2 C1 C0 Data Bits MSB.............................................LSB Control Bits 16 Bits of Serial Data MSB ..................................................................................LSB |
Similar Part No. - MAX5351ACPA |
|
Similar Description - MAX5351ACPA |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |