参数资料
| 型号： | MAX3799ETJ+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 20/36页 |
| 文件大小： | 0K |
| 描述： | IC AMP LIMITING VCSEL DVR 32TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 激光二极管驱动器 |
| 数据速率： | 14Gbps |
| 通道数： | 1 |
| 电源电压： | 2.85 V ~ 3.63 V |
| 电流 - 电源： | 97mA |
| 电流 - 调制： | 12mA |
| 电流 - 偏置： | 15mA |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
| 安装类型： | 表面贴装 |
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MAX3799
1Gbps to 14Gbps, SFP+ Multirate Limiting
Amplifier and VCSEL Driver
Table 3. Circuit Response to Single-Point Faults (continued)
PIN
30
31
32
NAME
V CCR
CAZ2
CAZ1
(V EER )
SHORT TO V CC
Normal
Normal (Note 1)
Disabled—Fault (external supply
shorted) (Note 2)
SHORT TO GND
Disabled—Fault (external supply
shorted) (Note 2)
Normal (Note 1)
Normal (Note 3)—Redundant path
OPEN
Normal (Note 3)—Redundant path
Normal (Note 1)
Normal (Note 3)—Redundant path
Note 1: Normal—Does not affect laser power.
Note 2: Supply-shorted current is assumed to be primarily on the circuit board (outside this device) and the main supply is
collapsed by the short.
Note 3: Normal in functionality, but performance could be affected.
Warning: Shorted to V CC or shorted to ground on some pins can violate the Absolute Maximum Ratings.
3-Wire Digital Communication
The MAX3799 implements a proprietary 3-wire digital
interface. An external controller generates the clock. The
3-wire interface consists of an SDA bidirectional data
line, an SCL clock signal input, and a CSEL chip-select
input (active high). The external master initiates a data
transfer by asserting the CSEL pin. The master starts to
generate a clock signal after the CSEL pin has been set
to 1. All data transfers are most significant bit (MSB) first.
Protocol
Each operation consists of 16-bit transfers (15-bit
address/data, 1-bit RWN). The bus master generates
16 clock cycles to SCL. All operations transfer 8 bits to
the MAX3799. The RWN bit determines if the cycle is
read or write. See Table 4.
Register Addresses
The MAX3799 contains 17 registers available for pro-
gramming. Table 5 shows the registers and addresses.
Write Mode (RWN = 0)
The master generates 16 clock cycles at SCL in total.
The master outputs a total of 16 bits (MSB first) to the
SDA line at the falling edge of the clock. The master
closes the transmission by setting CSEL to 0. Figure 4
Read Mode (RWN = 1)
The master generates 16 clock cycles at SCL in total.
The master outputs a total of 8 bits (MSB first) to the
SDA line at the falling edge of the clock. The SDA line is
released after the RWN bit has been transmitted. The
slave outputs 8 bits of data (MSB first) at the rising edge
of the clock. The master closes the transmission by set-
ting CSEL to 0. Figure 4 shows the interface timing.
Mode Control
Normal mode allows read-only instruction for all regis-
ters except MODINC and BIASINC. The MODINC and
BIASINC registers can be updated during normal
mode. Doing so speeds up the laser control update
through the 3-wire interface by a factor of two. The nor-
mal mode is the default mode.
Setup mode allows the master to write unrestricted data
into any register except the status (TXSTAT1, TXSTAT2,
and RXSTAT) registers. To enter the setup mode, the
MODECTRL register (address = H0x0E) must be set to
H0x12. After the MODECTRL register has been set to
H0x12, the next operation is unrestricted. The setup
mode is automatically exited after the next operation is
finished. This sequence must be repeated if further
unrestricted settings are necessary.
shows the interface timing.
Table 4. Digital Communication Word Structure
BIT
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
20
Register Address
RWN
Data that is written or read.
Maxim Integrated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX3799EVKIT+ | 功能描述:限幅放大器 Maxim Evaluation Kit RoHS:否 制造商:Micrel 输入电压范围（最大值）:3.6 V 工作电源电压:3.3 V 电源电流:40 mA 工作温度范围:- 40 C to + 85 C 封装 / 箱体:MSOP-10 封装:Tube |
| MAX379C/D | 功能描述:多路器开关 IC RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| MAX379CJE | 功能描述:多路器开关 IC RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| MAX379CPE | 功能描述:多路器开关 IC RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| MAX379CPE+ | 功能描述:多路器开关 IC 4:1 2Ch Fault-Prtct Analog MUX RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
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