SGTL5000XNLA3R2 Freescale Semiconductor, SGTL5000XNLA3R2 Datasheet - Page 73

• Manufacturer Part Number: SGTL5000XNLA3R2
• Description: IC AUDIO CODEC STEREO 20-QFN
• Manufacturer: Freescale Semiconductor
• Type: Stereo Audior

Specifications of SGTL5000XNLA3R2

• Data Interface: I²C, Serial, SPI™
• Number Of Adcs / Dacs: 1 / 1
• Sigma Delta: No
• S/n Ratio, Adcs / Dacs (db) Typ: 90 / 100
• Voltage - Supply, Analog: 1.62 V ~ 3.6 V
• Voltage - Supply, Digital: 1.1 V ~ 2 V, 1.62 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-UFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SGTL5000 EA2 DS-0-3
BITS
6:4
3:2
1:0
MODE_CM
MODE_LR
LVLADJC
FIELD
RW RESET
RW
RW
RW
0x0
0x0
0x0
These bits adjust the sensitivity of the capless headphone
center channel short detector in 50mA steps. This trip point
can vary by ~30% over process so leave plenty of guardband
to avoid false trips. This short detect trip point is also effected
by the bias current adjustments CHIP_REF_CTRL ->
BIAS_CTRL and by CHIP_ANA_TEST1 -> HP_IALL_ADJ.
0x3=50mA
0x2=100mA
0x1=150mA
0x0=200mA
0x4=250mA
0x5=300mA
0x6=350mA
0x7=400mA
These bits control the behavior of the short detector for the
capless headphone central channel driver. This mode should
be set prior to powering up the headphone amplifier. When a
short is detected the amplifier output switches to classA mode
interally to avoid excessive currents.
0x0 = Disable short detector, reset short detect latch, software
view non-latched short signal
0x1 = Enable short detector and reset the latch at timeout
(every ~50ms)
0x2 = This mode is not used/invalid
0x3 = Enable short detector with only manual reset (have to
return to 0x0 to reset the latch)
These bits control the behavior of the short detector for the
capless headphone central channel driver. This mode should
be set prior to powering up the headphone amplifier. When a
short is detected the amplifier output switches to classA mode
interally to avoid excessive currents.
0x0 = Disable short detector, reset short detect latch, software
view non-latched short signal
0x1 = Enable short detector and reset the latch at timeout
(every ~50ms)
0x2 = Enable short detector and auto reset when output
voltage rises (preferred mode)
0x3 = Enable short detector with only manual reset (have to
return to 0x0 to reset the latch)
DEFINITION
SGTL5000
73