SI3050-E-FM Silicon Laboratories Inc, SI3050-E-FM Datasheet - Page 63
SI3050-E-FM
Manufacturer Part Number
SI3050-E-FM
Description
IC VOICE DAA GCI/PCM/SPI 24-QFN
Manufacturer
Silicon Laboratories Inc
Series
-r
Datasheet
1.SI3050-E-FM.pdf
(128 pages)
Specifications of SI3050-E-FM
Function
Data Access Arrangement (DAA)
Interface
GCI, PCM, SPI
Number Of Circuits
1
Voltage - Supply
3 V ~ 3.6 V
Current - Supply
8.5mA
Power (watts)
*
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
24-WFQFN Exposed Pad
Includes
*
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Register 1. Control 1
Reset settings = 0000_0000
Bit
5:4
7
6
3
2
1
0
Name
Type
Bit
PWMM[1:0] Pulse Width Modulation Mode.
Reserved Read returns zero.
Reserved Read returns zero.
Reserved Read returns zero.
PWME
Name
IDL
SR
R/W
SR
D7
Software Reset.
0 = Enables the DAA for normal operation.
1 = Sets all registers to their reset value.
Note: Bit automatically clears after being set.
Used to select the type of signal output on the call progress AOUT pin.
00 = PWM output is clocked at 16.384 MHz as a delta-sigma data stream. A local density of
1s and 0s tracks the combined transmit and receive signals. Use this setting with the optional
call progress circuit shown in Figure 19 on page 20.
01 = Balanced conventional PWM output signal has high and low portions of the modulated
pulse that are centered on the 16 kHz sample clock.
10 = Conventional PWM output signal returns to logic 0 at regular 32 kHz intervals and rises
at a time in the 32 kHz period proportional to its instantaneous amplitude.
11 = Reserved.
Pulse Width Modulation Enable.
0 = Pulse width modulation mode disabled (AOUT).
1 = Enable pulse width modulation mode for the call progress analog output (AOUT). This
mode sums the transmit and receive audio paths and presents this as a CMOS digital-level
output of PWM data. The circuit in Figure 19 on page 20 should be used.
Isolation Digital Loopback.
0 = Digital loopback across the isolation barrier is disabled.
1 = Enables digital loopback mode across the isolation barrier. The line-side device must be
enabled and off-hook prior to setting this mode. The data path includes the TX and RX filters.
D6
D5
PWMM[1:0]
R/W
Rev. 1.4
D4
Function
Si3050 + Si3011/18/19
PWME
R/W
D3
D2
R/W
IDL
D1
D0
63
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