STLC1511 查看數據表（PDF） - STMicroelectronics
零件编号
产品描述 (功能)
比赛名单
STLC1511 Datasheet PDF : 31 Pages
| |||
STLC1511
3.5 Reference Voltages
Table 7. Reference Voltages/Currents
Unless otherwise noted, typical specifications apply for VCC = 5.0 V, temperature=25×C, nominal process and bias
current. Maximum and minimum performance is with VCC ± 5%, -40 =<T junction =< 105×C, and worst case process
and bias current.
Description
min
typ
max
Units
Comments
V3P75V Output voltage
3.6375 3.750
3.8625 Volts
measured at V3P75V
Output Referred Noise Voltage
at ANG
10
--n----V----
measured at V3P75V
Hz
TXDADC1 Output voltage
TXDADC1 Output current
External resistor at IREF
External capacitor at V3P75V
2.425
49
2.5V
50
0.22
2.575
50
51
Volts
mA
kW
mF
measured at TXDADC1
measured at TXDADC1
assume 2%
3.6 Serial Interface
The serial interface on the AFE provides for transmis-
sion of transmit and receive data between the
STLC1511 and digital modem ASIC. This is accom-
plished with a two bit wide data stream in each direc-
tion plus the appropriate clocks. The data for the
transmit path is input to the AFE on the TXSIN[1:0]
pins and the data for the receive path is output on the
RXSOUT[1:0] pins.
The serial interface also consists of a 35.328MHz
clock (CK35M) which is generated in the STLC1510
and is used to retime the Tx data sent to the
STLC1511. It is also used in the STLC1511 to retime
the Rx data before it is sent to the digital chip.
A 4.416MHz pulse is also output from the STLC1511.
This pulse on pin FRMCLK is used to indicate the
start of the output and input data words. The align-
ment of the data to the FRMCLK signal is shown be-
low.
A diagram of this interface is show in Figure 11.
Note the MSB of each of the 8-bit registers is trans-
ferred first (MSB = b15/ b7.)
Note that the data word used by the converters is in
2’s complement notation.
18/31
Share Link: 