MAX1385EVC16 Maxim Integrated Products, MAX1385EVC16 Datasheet - Page 38

• Manufacturer Part Number: MAX1385EVC16
• Description: Power Management Modules & Development Tools EVALUATION KIT FOR T FOR THE MAX1385BETM+
• Manufacturer: Maxim Integrated Products

Specifications of MAX1385EVC16

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Dual RF LDMOS Bias Controllers
with I
FIFOOVER is set to 1 when the FIFO overflows.
FIFOOVER is set to 0 after reading the Flag register.
All threshold-related bits in the Flag register can be
cleared at once by writing to the ALMSCLR bit in the
Software Alarm Configuration register (see the ALMSCFG
(Read/Write) section). HIGHI2 is set to 1 when the chan-
nel 2 current exceeds its high threshold. HIGHI2 resets to
0 after reading the Flag register. LOWI2 is set to 1 when
the channel 2 current drops below its low threshold.
LOWI2 resets to 0 after reading the Flag register.
HIGHT2 is set to 1 when the channel 2 temperature
measurement exceeds its high threshold. HIGHT2
resets to 0 after reading the Flag register. The LOWT2
is set to 1 when the channel 2 temperature measure-
ment drops below its low threshold. LOWT2 resets to 0
after reading the Flag register.
HIGHI1 is set to 1 when the channel 1 current exceeds
its high threshold. HIGHI1 resets to 0 after reading the
Flag register. LOWI1 is set to 1 when the channel 1 cur-
rent drops below its low threshold. LOWI1 resets to 0
after reading the Flag register. HIGHT1 is set to 1 when
the channel 1 temperature measurement exceeds its
high threshold. HIGHT1 resets to 0 after reading the
Flag register. LOWT1 is set to 1 when the channel 1
temperature measurement drops below its low thresh-
old. LOWT1 resets to 0 after reading the Flag register.
The MAX1385/MAX1386 contain an I
ble serial interface for configuration. Connect the mode-
select input, SEL, to DGND to select I
mode, the MAX1385/MAX1386 provide address inputs
A0 to A2 to allow eight devices to be connected on the
same bus (see the Slave Address Byte section).
Connect SEL to DV
drive A0/CSB low to select the device. The MAX1385/
MAX1386 support fast (400kHz) and high-speed
(1.7MHz or 3.4MHz) data-transfer modes. Data trans-
fers occur in 8-bit bytes with acknowledge (ACK) or
not-acknowledge (NACK) bits following each byte. The
MAX1385/ MAX1386 are permanent slaves and do not
generate their own clock signals. Figure 11 shows the
various read/write formats.
Use the following sequence to write a single word (see
Figure 11):
1) After generating a START condition (S or Sr),
38
address the MAX1385/MAX1386 by sending the
appropriate slave address byte with its correspond-
ing R/W bit set to zero (see the Slave Address Byte
section). The MAX1385/MAX1386 answer with an
ACK bit (see the Acknowledge Bits section).
______________________________________________________________________________________
2
C/SPI Interface
DD
to select SPI mode. In SPI mode,
Digital Serial Interface
2
2
C-/SPI-compati-
C mode. In I
Write Format
2
C
2) Send the appropriate write command byte (see the
3) Send the most significant 8-bit section of the 16-bit
4) Send the least significant 8-bit section of the 16-bit
5) Generate a (repeated) START or STOP condition (Sr
To write to a block of registers, use the same steps as
above but repeat steps 2, 3, and 4 without any START,
STOP, or repeated START conditions (Sr). Finish the
block write by generating a STOP condition.
All read operations can begin with a Sr as well as an S
condition. One type of read is a 5-byte operation, one is
a 3-byte operation, and the other is a continuous read
operation. The 5-byte operation reads from the register
address contained in one of the 5 bytes sent. The 3-
byte operation reads from the last register address
accessed. Use the following 5-byte sequence to read
Table 20. THRUHI1 and THRUHI2
(Read/Write)
Table 21. THRULO1 and THRULO2
(Read/Write)
Table 22. FINETHRUCAL1 and
FINETHRUCAL2 (Write)
DATA BIT
DATA BIT
D15–D10
DATA BIT
D15–D8
D7–D0
Command Byte section). The MAX1385/MAX1386
answer with an ACK bit.
data word, sending the MSBs first (see the Data
Bytes section). The MAX1385/MAX1386 answer with
an ACK bit.
data word, sending the MSBs first. The MAX1385/
MAX1386 answer with an ACK bit.
or P).
D9–D0
D15–D8
D7–D0
0000 0000
00 0000 0000
0000 0000
POR
POR
X
POR
X
X
Don’t care.
8-bit coarse high wiper DAC input
code. D7 is the MSB.
Don’t care.
8-bit coarse high wiper DAC
input code. D7 is the MSB.
Don’t care.
10-bit fine DAC input code. D9
is the MSB.
FUNCTION
FUNCTION
FUNCTION
Read Format