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Audio Line Noise Suppression for Smartphones

Murata examines how to maintain audio quality while suppressing noise in the internal audio circuits of smartphones. Smartphone audio quality differs by manufacturer as illustrated by the Earphone Audio Distortion Diagram (below), which shows the results of measuring audio distortion (THD + N). Common ferrite beads were used for noise suppression in the internal audio circuits of smartphones with poor THD + N results, but the models that emphasized audio quality used Murata's NFZ series. As the shift toward high-resolution audio continues to advance not only in specialized audio equipment but also in smartphones, audio filters that consider the impact on audio quality will become increasingly important.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.
RF Inductors - SMD 390 NH 5% LQW15CAR39J00D Murata Electronics 1: £0.308 8,880In Stock	Mfr. Part No. LQW15CAR39J00D Mouser Part No 81-LQW15CAR39J00D	Murata Electronics	RF Inductors - SMD 390 NH 5% Learn More about Murata Electronics murata lqw inductors	Datasheet	8,880In Stock	Cut Tape £0.308 £0.255 £0.21 £0.19 View Reel £0.145 £0.173 £0.166 £0.145 £0.145 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
RF Inductors - SMD LQW15CAR14J00D Murata Electronics 1: £0.308 7,469In Stock	Mfr. Part No. LQW15CAR14J00D Mouser Part No 81-LQW15CAR14J00D	Murata Electronics	RF Inductors - SMD Learn More about Murata Electronics murata lqw inductors	Datasheet	7,469In Stock	Cut Tape £0.308 £0.255 £0.21 £0.199 View Reel £0.155 £0.173 £0.169 £0.155 £0.155 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
RF Inductors - SMD LQW15CAR11K00D Murata Electronics 1: £0.33 9,990In Stock	Mfr. Part No. LQW15CAR11K00D Mouser Part No 81-LQW15CAR11K00D	Murata Electronics	RF Inductors - SMD Learn More about Murata Electronics murata lqw inductors	Datasheet	9,990In Stock	Cut Tape £0.33 £0.27 £0.223 £0.214 View Reel £0.152 £0.19 £0.176 £0.166 £0.152 £0.152 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
RF Inductors - SMD LQW15CAR64K00D Murata Electronics 1: £0.338 19,880In Stock	Mfr. Part No. LQW15CAR64K00D Mouser Part No 81-LQW15CAR64K00D	Murata Electronics	RF Inductors - SMD Learn More about Murata Electronics murata lqw inductors	Datasheet	19,880In Stock	Cut Tape £0.338 £0.28 £0.267 £0.217 View Reel £0.148 £0.212 £0.19 £0.175 £0.166 £0.148 £0.148 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
RF Inductors - SMD 500 NH 5% LQW15CAR50J00D Murata Electronics 1: £0.308 12,685In Stock	Mfr. Part No. LQW15CAR50J00D Mouser Part No 81-LQW15CAR50J00D	Murata Electronics	RF Inductors - SMD 500 NH 5% Learn More about Murata Electronics murata lqw inductors	Datasheet	12,685In Stock	Cut Tape £0.308 £0.255 £0.21 £0.199 View Reel £0.155 £0.173 £0.169 £0.155 £0.155 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
RF Inductors - SMD 180 NH 5% LQW15CAR18J00D Murata Electronics 1: £0.308 8,009In Stock	Mfr. Part No. LQW15CAR18J00D Mouser Part No 81-LQW15CAR18J00D	Murata Electronics	RF Inductors - SMD 180 NH 5% Learn More about Murata Electronics murata lqw inductors	Datasheet	8,009In Stock	Cut Tape £0.308 £0.255 £0.21 £0.19 View Reel £0.148 £0.173 £0.166 £0.148 £0.148 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
Ferrite Beads NFZ18SM251SZ10D Murata Electronics 1: £0.338 1,249In Stock	Mfr. Part No. NFZ18SM251SZ10D Mouser Part No 81-NFZ18SM251SZ10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	1,249In Stock	Cut Tape £0.338 £0.236 £0.204 £0.163 Reel £0.084 View £0.139 £0.122 £0.107 £0.083 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads NFZ18SM501SZ10D Murata Electronics 1: £0.338 8,065In Stock	Mfr. Part No. NFZ18SM501SZ10D Mouser Part No 81-NFZ18SM501SZ10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	8,065In Stock	Cut Tape £0.338 £0.236 £0.204 £0.163 View Reel £0.083 £0.139 £0.122 £0.107 £0.083 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Ferrite Beads NFZ15SG262SN10D Murata Electronics 1: £0.158 10,646In Stock	Mfr. Part No. NFZ15SG262SN10D Mouser Part No 81-NFZ15SG262SN10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	10,646In Stock	Cut Tape £0.158 £0.11 £0.086 £0.077 View Reel £0.056 £0.065 £0.058 £0.056 £0.056 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
RF Inductors - SMD LQW15CA22NK00D Murata Electronics 1: £0.308 5,344In Stock	Mfr. Part No. LQW15CA22NK00D Mouser Part No 81-LQW15CA22NK00D	Murata Electronics	RF Inductors - SMD Learn More about Murata Electronics murata lqw inductors	Datasheet	5,344In Stock	Cut Tape £0.308 £0.255 £0.21 £0.19 View Reel £0.149 £0.173 £0.166 £0.149 £0.149 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
RF Inductors - SMD LQW15CAR32K00D Murata Electronics 1: £0.308 4,394In Stock	Mfr. Part No. LQW15CAR32K00D Mouser Part No 81-LQW15CAR32K00D	Murata Electronics	RF Inductors - SMD Learn More about Murata Electronics murata lqw inductors	Datasheet	4,394In Stock	Cut Tape £0.308 £0.255 £0.21 £0.19 View Reel £0.155 £0.173 £0.166 £0.155 £0.155 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
RF Inductors - SMD LQW15CAR43K00D Murata Electronics 1: £0.308 3,932In Stock	Mfr. Part No. LQW15CAR43K00D Mouser Part No 81-LQW15CAR43K00D	Murata Electronics	RF Inductors - SMD Learn More about Murata Electronics murata lqw inductors	Datasheet	3,932In Stock	Cut Tape £0.308 £0.255 £0.21 £0.19 View Reel £0.155 £0.175 £0.166 £0.155 £0.155 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
RF Inductors - SMD 1000 NH 10% LQW15CA1R0K00D Murata Electronics 1: £0.308 13,842In Stock	Mfr. Part No. LQW15CA1R0K00D Mouser Part No 81-LQW15CA1R0K00D	Murata Electronics	RF Inductors - SMD 1000 NH 10% Learn More about Murata Electronics murata lqw inductors	Datasheet	13,842In Stock	Cut Tape £0.308 £0.255 £0.21 £0.199 View Reel £0.15 £0.173 £0.169 £0.15 £0.15 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
RF Inductors - SMD LQW15CA22NJ00D Murata Electronics 1: £0.308 17,841In Stock	Mfr. Part No. LQW15CA22NJ00D Mouser Part No 81-LQW15CA22NJ00D	Murata Electronics	RF Inductors - SMD Learn More about Murata Electronics murata lqw inductors	Datasheet	17,841In Stock	Cut Tape £0.308 £0.255 £0.21 £0.199 View Reel £0.155 £0.173 £0.169 £0.155 £0.155 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
RF Inductors - SMD 2 UH 10% LQW15CA2R0K00D Murata Electronics 1: £0.33 11,691In Stock	Mfr. Part No. LQW15CA2R0K00D Mouser Part No 81-LQW15CA2R0K00D	Murata Electronics	RF Inductors - SMD 2 UH 10% Learn More about Murata Electronics murata lqw inductors	Datasheet	11,691In Stock	Cut Tape £0.33 £0.27 £0.215 £0.214 View Reel £0.161 £0.204 £0.18 £0.174 £0.161 £0.161 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
RF Inductors - SMD 110 NH 5% LQW15CAR11J00D Murata Electronics 1: £0.308 12,321In Stock	Mfr. Part No. LQW15CAR11J00D Mouser Part No 81-LQW15CAR11J00D	Murata Electronics	RF Inductors - SMD 110 NH 5% Learn More about Murata Electronics murata lqw inductors	Datasheet	12,321In Stock	Cut Tape £0.308 £0.255 £0.21 £0.199 View Reel £0.155 £0.173 £0.169 £0.155 £0.155 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
RF Inductors - SMD LQW15CAR22J00D Murata Electronics 1: £0.308 7,702In Stock	Mfr. Part No. LQW15CAR22J00D Mouser Part No 81-LQW15CAR22J00D	Murata Electronics	RF Inductors - SMD Learn More about Murata Electronics murata lqw inductors	Datasheet	7,702In Stock	Cut Tape £0.308 £0.255 £0.21 £0.199 View Reel £0.158 £0.173 £0.169 £0.158 £0.158 MouseReel Available	Min.: 1 Mult.: 1 Max.: 10,000 : 10,000
RF Inductors - SMD 270 NH 5% LQW15CAR27J00D Murata Electronics 1: £0.308 7,800In Stock	Mfr. Part No. LQW15CAR27J00D Mouser Part No 81-LQW15CAR27J00D	Murata Electronics	RF Inductors - SMD 270 NH 5% Learn More about Murata Electronics murata lqw inductors	Datasheet	7,800In Stock	Cut Tape £0.308 £0.255 £0.21 £0.196 View Reel £0.155 £0.173 £0.169 £0.155 £0.155 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
RF Inductors - SMD Fixed IND 390nH 320mA NONAUTO LQW15CAR39K00D Murata Electronics 1: £0.33 10,709In Stock	Mfr. Part No. LQW15CAR39K00D Mouser Part No 81-LQW15CAR39K00D	Murata Electronics	RF Inductors - SMD Fixed IND 390nH 320mA NONAUTO Learn More about Murata Electronics murata lqw inductors	Datasheet	10,709In Stock	Cut Tape £0.33 £0.27 £0.223 £0.217 View Reel £0.167 £0.204 £0.18 £0.174 £0.167 £0.167 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
RF Inductors - SMD LQW15CAR56K00D Murata Electronics 1: £0.33 8,750In Stock	Mfr. Part No. LQW15CAR56K00D Mouser Part No 81-LQW15CAR56K00D	Murata Electronics	RF Inductors - SMD Learn More about Murata Electronics murata lqw inductors	Datasheet	8,750In Stock	Cut Tape £0.33 £0.27 £0.227 £0.186 £0.167 Reel £0.167 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
RF Inductors - SMD 730 NH 5% LQW15CAR73J00D Murata Electronics 1: £0.308 13,366In Stock	Mfr. Part No. LQW15CAR73J00D Mouser Part No 81-LQW15CAR73J00D	Murata Electronics	RF Inductors - SMD 730 NH 5% Learn More about Murata Electronics murata lqw inductors	Datasheet	13,366In Stock	Cut Tape £0.308 £0.255 £0.21 £0.196 View Reel £0.155 £0.173 £0.169 £0.155 £0.155 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
RF Inductors - SMD 800 NH 5% LQW15CAR80J00D Murata Electronics 1: £0.33 8,140In Stock	Mfr. Part No. LQW15CAR80J00D Mouser Part No 81-LQW15CAR80J00D	Murata Electronics	RF Inductors - SMD 800 NH 5% Learn More about Murata Electronics murata lqw inductors	Datasheet	8,140In Stock	Cut Tape £0.33 £0.27 £0.223 £0.217 View Reel £0.161 £0.196 £0.18 £0.17 £0.161 £0.161 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
Ferrite Beads NFZ15SG101SN11D Murata Electronics 1: £0.225 9,940In Stock	Mfr. Part No. NFZ15SG101SN11D Mouser Part No 81-NFZ15SG101SN11D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	9,940In Stock	Cut Tape £0.225 £0.158 £0.122 £0.109 View Reel £0.056 £0.093 £0.082 £0.072 £0.07 £0.056 MouseReel Available	Min.: 1 Mult.: 1 Max.: 30,000 : 10,000
Ferrite Beads NFZ15SG151SN11D Murata Electronics 1: £0.225 5,698In Stock	Mfr. Part No. NFZ15SG151SN11D Mouser Part No 81-NFZ15SG151SN11D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	5,698In Stock	Cut Tape £0.225 £0.158 £0.122 £0.109 View Reel £0.056 £0.093 £0.082 £0.072 £0.066 £0.056	Min.: 1 Mult.: 1 : 10,000
Ferrite Beads NFZ15SG152SN10D Murata Electronics 1: £0.233 9,290In Stock	Mfr. Part No. NFZ15SG152SN10D Mouser Part No 81-NFZ15SG152SN10D	Murata Electronics	Ferrite Beads Learn More about Murata Electronics murata nfz chip noise filters	Datasheet	9,290In Stock	Cut Tape £0.233 £0.162 £0.14 £0.113 View Reel £0.056 £0.096 £0.085 £0.074 £0.07 £0.056	Min.: 1 Mult.: 1 : 10,000

Audio Line Noise Suppression for Smartphones

Types of Passive Components

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Audio Line Noise Suppression for Smartphones

Types of Passive Components