MITSMI MM1407 Datasheet

MITSUMI

Audio MM1407

Audio

Monolithic IC MM1407

Outline

This audio IC was developed for notebook PCs and allows major reduction of amp circuit board area. (To conform to PC98, includes built-in speaker drive amp, headphone amp, line amp. stereo/monaural switching, DC voltage control electronic volume, watchdog, logic control function.)

Features

(1) Speaker amp: Stereo BTL output 0.7W (when VCC = 5.0V, RL = 8Ω)

(2) Electronic volume control (

THD1 = 0.5% (when V THD2 = 0.1% (when V

(4) Line amp: Mixes 4 inputs ( 2ch signals and outputs on 3 outputs ( 2ch. Stereo/monaural switching

possible on one line. THD = 0.1% (when V (5) Microphone amp: Switch pin selects 1 of 4 inputs (6) Logic control: Speaker, headphone and line amp (including microphone amp and mix amp) logic

controllable. Current consumption 300µA during power save mode.

60 ~ +20dB). THD = 0.5% (when POUT = 300mW, RL = 8Ω)

OUT = 100mVrms, RL = 16Ω) OUT = 1VmVrms, RL = 10kΩ)

OUT = 1Vrms, RL = 10kΩ)

Package

QFP-80B

Applications

(1) Notebook PC audio control

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Block Diagram

Audio signal control section (Except where otherwise indicated amp gain is 0dB.)

Audio MM1407

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Audio MM1407

HP signal control section

SP signal control section

Digtal signal control section

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Pin Description

Audio MM1407

60 57 5559 58 56 53952

61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80

13 762458

105111501249134814471546164517441843194220

QFP-80B

40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21

1 Vref-IN 21 IS IN A (R) 41 HP (R) 61 HP IN (L) 2 Aux E (L) 22 IS IN B (R) 42 V

CC1 62 IS IN E (L)

3 Aux D (L) 23 IS IN C (R) 43 PGND1 63 SP IN (L) 4 Aux C (L) 24 IS IN D (R) 44 SP (R)+ 64 HP VOL 5 Aux B (L) 25 IS SEL 45 VP1 65 Mic 6 Aux A (L) 26 Line out (R) 46 VP2 66 Mic 7 Aux Mix (L) 27 Pre out A (R) 47 SP (R)

67 Mic-1 8 Line in B (L) 28 Pre out B (R) 48 PGND2 68 Mic 9 Line in A (L) 29 Mono SEL 49 GND1 69 Mic

10 Line Mix (L) 30 Cap 50 GND2 70 Mic

sel 0

sel 1

11 AGND1 31 WAKEUP 51 PGND3 71 Mic out 12 Line Mix (R) 32 AMPSD 52 SP (L)+ 72 AGND2 13 Line in A (R) 33 SD 53 VP3 73 Pre out B (L) 14 Line in B (R) 34 HP 15 Aux Mix (R) 35 DGND 55 SP (L) 16 Aux A (R) 36 VD 56 PGND4 76 AV

IN 54 VP4 74 Pre out A (L)

75 Line out (L)

17 Aux B (R) 37 Vref (P)-IN 57 VCC2 77 IS IN D (L) 18 Aux C (R) 38 SP IN (R) 58 HP (L) 78 IS IN C (L) 19 Aux D (R) 39 IS IN E (R) 59 IS IN E VOL 79 IS IN B (L) 20 Aux E (R) 40 HP IN (R) 60 SP VOL 80 IS IN A (L)

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Pin Description

Audio MM1407

Pin No.

Pin name

1 Vref

2 Aux E (L) Input Audio signal control 1 of 5 Aux Mix (L) (add amp) inputs. 3 Aux D (L) Input Audio signal control 1 of 5 Aux Mix (L) (add amp) inputs. 4 Aux C (L) Input Audio signal control 1 of 5 Aux Mix (L) (add amp) inputs. 5 Aux B (L) Input Audio signal control 1 of 5 Aux Mix (L) (add amp) inputs. 6 Aux A (L) Input Audio signal control 1 of 5 Aux Mix (L) (add amp) inputs. 7

Aux Mix (L)

Line In B (L)

Line In A (L)

Line Mix (L)

11 AGND1 GND Audio signal control 12

Line Mix (R)

Line In A (R)

Line In B (R)

Aux Mix (R)

16 Aux A (R) Input Audio signal control 1 of 5 Aux Mix (R) (add amp) inputs. 17 Aux B (R) Input Audio signal control 1 of 5 Aux Mix (R) (add amp) inputs. 18 Aux C (R) Input Audio signal control 1 of 5 Aux Mix (R) (add amp) inputs. 19 Aux D (R) Input Audio signal control 1 of 5 Aux Mix (R) (add amp) inputs. 20 Aux E (R) Input Audio signal control 1 of 5 Aux Mix (R) (add amp) inputs.

21 IS IN A (R) Input Audio signal control

22 IS IN B (R) Input Audio signal control

23 IS IN C (R) Input Audio signal control

24 IS IN D (R) Input Audio signal control

25 IS Sel. Input (SW) Audio signal control

Line Out (R)

Pre Out A (R)

Pre Out B (R)

29 Mono Sel. Input (SW) Audio signal control

30 Cap

31 WAKEUP 32 AMPSD 33 SD

Input/Output

Power supply (reference)

Output Audio signal control Signal with Aux A ~ E (L) input added is output.

Input Audio signal control 1 of 2 Line In (L) (add amp) inputs. Input Audio signal control 1 of 2 Line In (L) (add amp) inputs.

Output Audio signal control Signal with Aux A ~ B (L) input added is output.

Input Audio signal control 1 of 2 Line In (R) (add amp) inputs. Input Audio signal control 1 of 2 Line In (R) (add amp) inputs.

Output Audio signal control Signal with Aux A ~ E (R) input added is output.

Output Audio signal control

Input (logic)

Input (logic) Input (logic) Input (logic)

Section Function

Audio signal control Applies audio signal control reference potential.

Audio signal control ground pin. (except for Mic amp)

1 pin of 4 amp inputs that output to Line Out (R), Pre Out A (R), Pre Out B (R), (L). 1 pin of 4 amp inputs that output to Line Out (R), Pre Out A (R), Pre Out B (R), (L). 1 pin of 4 amp inputs that output to Line Out (R), Pre Out A (R), Pre Out B (R), (L). 1 pin of 4 amp inputs that output to Pre Out A (R), Pre Out B (R), (L). This pin selects either of two inputs IS IN A (R) or IS IN B (R). (See Figure A) A signal that has IS IN A (R) or B (R) or IS IN C (R) added is output. A signal that has IS IN A (R) or B (R) or IS IN C (R) or IS IN D (R) added is output. During Mono Sel. R Stereo selection, a signal that has IS IN A (R) or B (R) or IS IN C (R) or IS IN D (R) added is output. During Mono Sel. R Mono selection, a signal that is a mixture of a signal with (R) input added and then lowered 9dB and a signal that with (L) input added and lowered 9dB. This pin switches Pre Out B (L), (R) Stereo and Mono output. (See Figure A) This pin sets clock monitoring time for the watchdog timer

Digital signal control

Digital signal control 1 of 4 logic circuit inputs. (See Figure D) Digital signal control 1 of 4 logic circuit inputs. (See Figure D) Digital signal control 1 of 4 logic circuit inputs. (See Figure D)

circuit. Clock monitoring time is determined by the capacitor time constant connected to this pin. (See Figure C)

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Audio MM1407

Pin No.

Pin name

34 HP 35 DGND GND 36 VD

37 Vref

38 SP IN (R) Input SP signal control

39 IS IN E (R) Input SP signal control

40 HP IN (R) Input HP signal control HP amp (R 41 HP (R) Output HP signal control HP amp (R

42 V

43 PGND1 GND 44 SP (R) + Output SP signal control SP amp (R 45 VP1 46 VP2 47 SP (R) 48 PGND2 GND

49 GND1 GND

50 GND2 GND

51 PGND3 GND 52 SP (L) + Output SP signal control SP amp (L 53 VP3 54 VP4 55 SP (L) 56 PGND4 GND

57 V

58 HP (L) Output HP signal control HP amp (R 59 IS IN E Vol. Input SP signal control SP amp IS IN E input electronic volume pin. ( 60 SP Vol. Input SP signal control SP amp SP IN input electronic volume pin. ( 61 HP IN (L) Input HP signal control HP amp (L

62 IS IN E (L) Input SP signal control

63 SP IN (L) Input SP signal control

64 HP Vol. Input HP signal control HP amp electronic volume pin. (

65 Mic

66 Mic

67 Mic 68 Mic 69 Mic 70 Mic

71 Mic

(P) IN

CC1

CC2

Sel.0 Input Audio signal control

Sel.1 Input Audio signal control

Input/Output

Input (logic) Digital signal control

Power supply Power supply (reference)

Power supply

Power supply Power supply

Output SP signal control SP amp (R-ch) BTL output (-) pin.

Power supply Power supply

Output SP signal control SP amp (L-ch) BTL output (-) pin.

Power supply

1 Input Audio signal control 1 of 4 Mic amp inputs.

2 Input Audio signal control 1 of 4 Mic amp inputs.

4 Input Audio signal control 1 of 4 Mic amp inputs.

3 Input Audio signal control 1 of 4 Mic amp inputs.

Out Output Audio signal control

Section Function

1 of 4 logic circuit inputs. (See Figure D) Digital signal control Digital signal control

SP, HP signal control Applies SP, HP signal control section reference potential.

SP, HP signal control

SP, HP signal control SP, HP signal control

SP, HP signal control

SP, HP signal control SP, HP signal control

SP, HP signal control

Digital signal control ground pin.

Digital signal control Vcc pin. (*1)

1 of 2 SP amp (R

input.

1 of 2 SP amp (R

input.

SP, HP amp input stage, EVR circuit, DC bias circuit VCC

pin. (*2)

SP, HP amp output stage (power amp) ground pin.

SP, HP amp output stage (power amp) VCC pin.

SP, HP amp output stage (power amp) ground pin.

SP, HP amp input stage, EVR circuit, DC bias circuit

ground pin. (

SP, HP amp input stage, EVR circuit, DC bias circuit

ground pin. (

SP, HP amp output stage (power amp) ground pin.

SP, HP amp output stage (power amp) VCC pin.

SP, HP amp output stage (power amp) ground pin.

SP, HP amp input stage, EVR circuit, DC bias circuit Vcc

pin. (

1 of 2 SP amp (L

input.

1 of 2 SP amp (L

input.

Selects 1 of 4 Mic amp inputs in combination with Mic-

Sel. 1 pin. (See Figure E)

Selects 1 of 4 Mic amp inputs in combination with Mic-

Sel. 0 pin. (See Figure E)

1 of 4 Mic 1 ~ 4 inputs is output depending on

combination of Mic Sel. 0 and Mic Sel. 1 pins.

ch) inputs. Use music source, etc.

ch) inputs. Use beep alarm sound, etc.

ch) input.

ch) output.

ch) BTL output (+) pin.

ch) output pin.

ch) input.

ch) inputs. Use beep alarm sound, etc.

ch) inputs. Use music source, etc.

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Audio MM1407

Pin No.

1 VD power supply and VP power supply must have the same potential.

2 In order to avoid the effects of SP, HP amp interference between L and R, and interference between SP

3 In order to avoid the effects of SP, HP amp interference between L and R, and interference between SP

4 The maximum voltage that can be impressed on IS IN E Vol. pin is 2.0V.

5 The maximum voltage that can be impressed on SP Vol. pin is 2.0V.

6 The maximum voltage that can be impressed on HP Vol. pin is 2.0V.

Pin name

72 AGND2 GND Audio signal control Mic amp ground pin.

Pre Out B (L)

Pre Out A (L)

Pre Out (L)

76 AV

77 IS IN D (L) Input Audio signal control

78 IS IN C (L) Input Audio signal control

79 IS IN B (L) Input Audio signal control

80 IS IN A (L) Input Audio signal control

and HP amps on separation characteristics, the wiring connected to this pin should have the same impedance as other Vcc lines (especially lines with large current). (This is not a problem when Vcc1 and Vcc2 lines are bundled.)

and HP amps on separation characteristics, the wiring connected to this pin should have the same impedance as other ground lines (especially lines with large current). (This is not a problem when GND1 and GND2 lines are bundled.)

Input/Output

Output Audio signal control

CC Audio signal control Audio signal control VCC pin.

Section Function

During Mono Sel. R Stereo selection, a signal that has IS IN A (L)

or B (L) or IS IN C (L) or IS IN D (L) added is output. During

Mono Sel. R Mono selection, a signal that is a mixture of a signal

with (L) input added and then lowered 9dB and a signal that with

(R) input added and lowered 9dB. (See Figure B)

A signal that has IS IN A (R) or B (R) or IS IN C (R) or

IS IN D (R) added is output.

A signal that has IS IN A (R) or B (R) or IS IN C (R)

added is output.

1 of 4 amp inputs that is output to Pre Out A (R) or Pre

Out B (R), (L).

1 of 4 amp inputs that is output to Line Out (R) or Pre

Out A (R), Pre Out B (R), (L).

1 of 4 amp inputs that is output to Line Out (R) or Pre

Out A (R), Pre Out B (R), (L).

1 of 4 amp inputs that is output to Line Out (R) or Pre

Out A (R), Pre Out B (R), (L).

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IS Sel. Pin and Mono Sel. (L) Pin Selection

Selects either IS IN A (R) or IS IN B (L).

IS SEL. H A

L B

Audio MM1407

Selects either Pre Out B (L), (R) Stereo/Monaural.

Mono Sel. (L) H Stereo

L Monaural

Figure B. Mono Sel. (L) Pin Pre Out B (L) (R) Signal Route during Mono Selection

The signal route when Mono Sel. (L) pin mono is selected is: point 1 L-ch signal is lowered 9dB and this signal is added at point 3 to point 2 R-ch signal lowered 9dB. This level is output to Pre Out B (L), (R).

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