MAX19713ETN+T【PDF 17/37 页】IC ANLG FRNT END 56-TQFN

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MAX19713

10-Bit, 45Msps, Full-Duplex

Analog Front-End

______________________________________________________________________________________

the on-board converters are already powered.

Consequently, power consumption in this mode is the

maximum of all operating modes. In FD mode the

MAX19713 consumes 91.8mW.

Wake-Up Function

The MAX19713 uses the SPI interface to control the

operating modes of the device including the shutdown

and wake-up functions. Once the device has been

placed in shutdown through the appropriate SPI com-

mand, the first pulse on

CS/WAKE performs a wake-up

function. At the first rising edge of

CS/WAKE, the

MAX19713 is forced to a preset operating mode deter-

mined by the WAKEUP-SEL register. This mode is

termed the wake-up state. If the WAKEUP-SEL register

has not been programmed, the wake-up state for the

MAX19713 is FD mode by default (Tables 6, 11). The

WAKEUP-SEL register cannot be programmed with W2

= 0, W1 = 0, and W0 = 0. If this value is inadvertently

written to the device, it is ignored and the register con-

tinues to store its previous value. Upon wake-up, the

Table 9. Offset Control Bits for ID and QD Channels (IOFFSET or QOFFSET Mode)

BITS IO5–IO0 WHEN IN IOFFSET MODE, BITS QO5–QO0 WHEN IN QOFFSET MODE

IO5/QO5

IO4/QO4

IO3/QO3

IO2/QO2

IO1/QO1

IO0/QO0

OFFSET 1 LSB =

(VFSP-P / 1023)

111

-31 LSB

111

110

-30 LSB

111

101

-29 LSB

100

010

-2 LSB

100

001

-1 LSB

100

000

0mV

0mV (Default)

000

001

1 LSB

000

010

2 LSB

011

101

29 LSB

011

110

30 LSB

011

111

31 LSB

Note: 1 LSB = (800mVP-P / 1023) = 0.782mV.

Table 10. Common-Mode Select

(COMSEL Mode)

CM1

CM0

Tx PATH OUTPUT COMMON MODE (V)

1.06 (Default)

0.94

0.82

0.71

Table 11. WAKEUP-SEL Register

POWER MODE AFTER WAKE-UP

(WAKE-UP STATE)

000

Invalid Value. This value is ignored

when inadvertently written to the

WAKEUP-SEL register.

001

IDLE

010

STBY

SPI1-SLOW Rx

SPI2-SLOW Tx

SPI3-FAST Rx

SPI4-FAST Tx

111

FD (Default)

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