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NCX8193 데이터시트 PDF




NXP Semiconductors에서 제조한 전자 부품 NCX8193은 전자 산업 및 응용 분야에서
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부품번호 NCX8193 기능
기능 Audio jack detection and configuration
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NCX8193 데이터시트, 핀배열, 회로
NCX8193
Audio jack detection and configuration with false detection
prevention
Rev. 2 — 21 November 2014
Product data sheet
1. General description
The NCX8193 is an advanced audio jack accessory detector and controller.
It supports 3-pole and 4-pole connectors and detects the insertion of plugs into jacks
using a fault detection technique. An internal microphone bias line switch allows a codec
or application processor to control the audio jack configuration. The device supports a
broad variety of after-market headphones.
2. Features and benefits
Fail-safe headset and headphone detection
Low-power standby mode
Click free switching
Low THD and noise microphone pass through channel
Send/End button detection
Low ON resistance: 0.9 (typical) at a supply voltage of 2.8 V
ESD protection:
HBM JEDEC JDS-001 Class 3B exceeds 8 kV
Operating ambient temperature 40C to +85C
3. Applications
Headphones with integrated microphone and remote control buttons
4. Ordering information
Table 1. Ordering information
Type number Package
Temperature range
NCX8193GU 40 C to +85 C
Name
XQFN10
5. Marking
Description
plastic, extremely thin quad flat package; no leads;
10 terminals; body 1.8 1.4 0.5 mm
Version
SOT1160-2
Table 2. Marking codes
Type number
NCX8193GU
Marking code
q8




NCX8193 pdf, 반도체, 판매, 대치품
NXP Semiconductors
NCX8193
Audio jack detection and configuration with false detection prevention
8. Functional description
The simplified schematic of the NCX8193 is shown in Figure 1.
If no plug is inserted, J_DET is pulled-up to VCC via a 1.2 Mresistor. Once J_DET is
pulled below 400 mV, the pull-up resistor is switched out and J_DET is connected to a
variable current source. The current source slowly increases its output current. If J_DET
remains lower than 300 mV, DET is set LOW to indicate that a plug has been inserted.
In case DET is set LOW, when EN is HIGH, J_DET is connected to the current source and
the integrated button press detection circuit on J_MIC is active. The button press
detection uses a trigger level of 780 mV. It enables a 1.8 V bias voltage in combination
with an Rbias, matching the series resistance of the microphone, to detect button presses.
Not only call-end button press but also forward and reverse button press event levels can
be passed from J_MIC to MIC. The codec or processor decodes according to the
individual button pressed. Refer to Figure 3 and Figure 4 for details.
-B'(7P9
6OHHS
-B'(7!9
'HWHFW
-B'(7!9
IRUPV
-B'(7P9
IRUPV
-B'(7P9
-B'(7!P9
0RLVWXUH
3OXJLQ
'(7 /
(1 +DQG
-B'(79
(1 /RU
-B'(7!9
$FWLYH
'(7 /
-B0,&P9
IRUPV
-B0,&!P9
IRUPV
(1 /RU
-B'(7!9
-B0,&
3UHVVHG
6( +
'(7 /
DDD
Fig 3. Simplified status diagram of NCX8193
NCX8193
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 21 November 2014
© NXP Semiconductors N.V. 2014. All rights reserved.
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NCX8193 전자부품, 판매, 대치품
NXP Semiconductors
NCX8193
Audio jack detection and configuration with false detection prevention
Table 5. Limiting values …continued
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol
Parameter
Conditions
Min Max
Unit
Tj(max)
maximum junction
temperature
40 +125
C
Tstg storage temperature
65 +150
C
Ptot total power dissipation
- 250 mW
11. Recommended operating conditions
Table 6.
Symbol
VCC
VCC(IO)
VI
V
Tamb
Recommended operating conditions
Parameter
Conditions
supply voltage
input/output supply voltage
input voltage
VCC(IO) VCC
MIC; J_MIC
voltage difference
ambient temperature
VCC to J_DET
12. Thermal characteristics
Min Max Unit
2.4 5.25 V
1.6
VCC
V
0
VCC
V
- 5.5 V
40 +85 C
Table 7.
Symbol
Rth(j-a)
Thermal characteristics
Parameter
thermal resistance from junction to ambient
Conditions
Typ
[1] 148
Unit
K/W
[1] Rth(j-a) is dependent upon board layout. To minimize Rth(j-a), ensure that all pins have a solid connection to larger copper layer areas. In
multi-layer PCBs, the second layer should be used to create a large heat spreader area below the device. Avoid using solder-stop
varnish under the device.
13. Static characteristics
Table 8. Static characteristics
At recommended operating conditions, unless otherwise specified typical values are measured with VCC = 3.6 V and
VCC(IO) = 1.8 V. Voltages are referenced to GND (ground 0 V).
Symbol Parameter Conditions
Tamb = 25 C
Tamb = 40 C to +85 C
Min Typ Max
Min
Max
Unit
Digital control
VIH HIGH-level EN
input voltage
- - - 0.7VCC(IO)
-V
VIL
LOW-level
EN
input voltage
---
- 0.3VCC(IO) V
VOH HIGH-level DET; S/E; IO = 0.5 mA
output voltage
- - - 0.8VCC(IO)
-V
VOL LOW-level DET; S/E; IO = 0.5 mA
output voltage
---
- 0.2VCC(IO) V
CI input
J_DET
capacitance EN
-5-
-1-
-
-
- pF
- pF
NCX8193
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 21 November 2014
© NXP Semiconductors N.V. 2014. All rights reserved.
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NCX8193

Audio jack detection and configuration

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