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G1420F31U Datasheet(PDF) 1 Page - Global Mixed-mode Technology Inc |
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G1420F31U Datasheet(HTML) 1 Page - Global Mixed-mode Technology Inc |
1 / 20 page Ver: 1.5 Aug 04, 2005 TEL: 886-3-5788833 http://www.gmt.com.tw 1 G1420 Global Mixed-mode Technology Inc. 2W Stereo Audio Amplifier Features Depop Circuitry Integrated Output Power at 1% THD+N, VDD=5V --1.8W/CH (typical) into a 4 Ω Load --1.2W/CH (typical) into a 8 Ω Load Bridge-Tied Load (BTL), Single-Ended (SE) Stereo Input MUX Mute and Shutdown Control Available Surface-Mount Power Package 24-Pin TSSOP-P Applications Stereo Power Amplifiers for Notebooks or Desktop Computers Multimedia Monitors Stereo Power Amplifiers for Portable Audio Systems General Description G1420 is a stereo audio power amplifier in 24pin TSSOP thermal pad package. It can drive 1.8W con- tinuous RMS power into 4 Ω load per channel in Bridge-Tied Load (BTL) mode at 5V supply voltage. Its THD is smaller than 1% under the above operation condition. To simplify the audio system design in the notebook application, G1420 supports the Bridge-Tied Load (BTL) mode for driving the speakers, Single-End (SE) mode for driving the headphone. G1420 can mute the output when Mute-In is activated. For the low current consumption applications, the SHDN mode is supported to disable G1420 when it is idle. The current consumption can be further reduced to below 5µA. G1420 also supports two input paths, that means two different gain loops can be set in the same PCB and choosing either one by setting HP/ LINE pin. It en- hances the hardware designing flexibility. Ordering Information ORDER NUMBER ORDER NUMBER (Pb free) TEMP. RANGE PACKAGE G1420F31U G1420F31Uf -40°C to +85°C TSSOP-24 (FD) Note: F3: TSSOP-24 (FD) U: Tape & Reel Pin Configuration ROUT+ RLINEIN RHPIN RBYPASS RVDD NC HP/LINE ROUT- SE/BTL GND/HS LOUT+ LLINEIN LHPIN LBYPASS LVDD SHUTDOWN MUTE OUT LOUT- MUTE IN G1420 GND/HS TSSOP-24 (FD) 13 24 23 22 21 20 19 18 17 16 15 5 6 7 8 9 10 11 12 1 4 3 2 14 TJ NC 14 Thermal Pad Top View Bottom View GND/HS GND/HS Note: Recommend connecting the Thermal Pad to the GND for excellent power dissipation. ROUT+ RLINEIN RHPIN RBYPASS RVDD NC HP/LINE ROUT- SE/BTL GND/HS LOUT+ LLINEIN LHPIN LBYPASS LVDD SHUTDOWN MUTE OUT LOUT- MUTE IN G1420 GND/HS TSSOP-24 (FD) 13 24 23 22 21 20 19 18 17 16 15 5 6 7 8 9 10 11 12 1 4 3 2 14 TJ NC 14 Thermal Pad Top View Bottom View GND/HS GND/HS Note: Recommend connecting the Thermal Pad to the GND for excellent power dissipation. |
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